EaseMarry Blogs

An online directory of free sites to submit RSS Tools

admin — Thu, 23 Jul 2009 07:01:53 +0000

Today to find a free online directory sites to submit RSS tools, can be automatically submitted to 27 RSS directory sites, now supports 2RSS, Google, Daytimenews, Devasp, Feedboy other popular directory site of the RSS Feed.

http://www.cpworld2000.com/RssSubmitTool/

Capture Video from ip camera using JMF

rueben — Sat, 11 Jul 2009 21:50:39 +0000

Following is the java code – which gets video from D-Link DCS900 (ip-camera) & display in frame. This is pure java class. (NO JMF)
Please give ur DCS900’s ip-address on line no. 27/28

^?View Code JAVA

import java.net.;
import com.sun.image.codec.jpeg.;
import java.io.;
import java.awt.;
import java.awt.event.;
import java.awt.image.;
import javax.swing.;
import java.applet.;
 
public class AxisCamera extends Applet implements Runnable
{
public boolean useMJPGStream = true;
String appletToLoad;
Thread appletThread;
 
//URL for Axis 2420
//public String jpgURL="http://www.easemarry.com/axis-cgi/jpg/image.cgi?resolution=352x240";
//public String mjpgURL="http://www.easemarry.com/axis-cgi/mjpg/video.cgi?resolution=352x240";
 
//Following 3-lines added
//URL for D-Link DCS-900
public String jpgURL = "http://www.easemarry.com/IMAGE.JPG";
public String mjpgURL = "http://www.easemarry.com/video.cgi";
 
DataInputStream dis;
private Image image=null;
public Dimension imageSize = null;
public boolean connected = false;
private boolean initCompleted = false;
HttpURLConnection huc=null;
Component parent;
 
/* Creates a new instance of AxisCamera */
public AxisCamera (Component parent_)
{
parent = parent_;
}
 
 
public void connect()
{
try
{
URL u = new URL(useMJPGStream?mjpgURL:jpgURL);
huc = (HttpURLConnection) u.openConnection();
//System.out.println(huc.getContentType());
InputStream is = huc.getInputStream();
connected = true;
BufferedInputStream bis = new BufferedInputStream(is);
dis= new DataInputStream(bis);
if(!initCompleted)
initDisplay();
}
catch(IOException e)
{
//incase no connection exists wait and try again, instead of printing the error
try
{
huc.disconnect();
Thread.sleep(60);
}
catch(InterruptedException ie)
{
huc.disconnect();connect();
}
connect();
}
catch(Exception e){;}
}
 
public void initDisplay()
{
//setup the display
if (useMJPGStream)
readMJPGStream();
else
{
readJPG();
disconnect();
}
imageSize = new Dimension(image.getWidth(this), image.getHeight(this));
//setPreferredSize(imageSize);
//parent.setSize(imageSize);
//parent.validate();
initCompleted = true;
}
 
public void disconnect()
{
try
{
if(connected)
{
dis.close();
connected = false;
}
}
catch(Exception e){;}
}
 
public void init()
{
System.out.println("Starting Applet");
appletToLoad = getParameter("appletToLoad");
setBackground(Color.white);
}
 
public void paint(Graphics g)
{
//used to set the image on the panel
if (image != null)
g.drawImage(image, 0, 0, this);
}
 
/public void run()
{
try {
 
connect();
readStream();
 
Class appletClass = Class.forName(appletToLoad);
Applet realApplet = (Applet)appletClass.newInstance();
//realApplet.setStub(this);
setLayout( new GridLayout(1,0));
add(realApplet);
realApplet.init();
realApplet.start();
}
catch (Exception e) {
System.out.println( e );
}
validate();
}
 
public void start()
{
appletThread = new Thread(this);
appletThread.start();
}
 
public void stop()
{
appletThread.stop();
appletThread = null;
}
 
public void readStream()
{
//the basic method to continuously read the stream
try
{
if (useMJPGStream)
{
while(true)
{
readMJPGStream();
//parent.repaint();
}
}
else
{
while(true)
{
connect();
readJPG();
//parent.repaint();
disconnect();
}
}
 
}
catch(Exception e){;}
}
 
public void readMJPGStream()
{
//preprocess the mjpg stream to remove the mjpg encapsulation
 
//Following commented on 07/08/2006
//readLine(3,dis); //discard the first 3 lines
 
//Following added on 07/08/2006
readLine(4, dis); //discard the first 4 lines for D-Link DCS-900
 
readJPG();
readLine(2,dis); //discard the last two lines
}
 
public void readJPG()
{
//read the embedded jpeg image
try
{
JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(dis);
image = decoder.decodeAsBufferedImage();
}
catch(Exception e)
{
e.printStackTrace();disconnect();
}
}
 
public void readLine(int n, DataInputStream dis)
{
//used to strip out the header lines
for (int i=0; i<n ;i++)
{
readLine(dis);
}
}
 
public void readLine(DataInputStream dis)
{
try
{
boolean end = false;
String lineEnd = "\n"; //assumes that the end of the line is marked with this
byte[] lineEndBytes = lineEnd.getBytes();
System.out.println("lineEndBytes....."+lineEndBytes);
byte[] byteBuf = new byte[lineEndBytes.length];
System.out.println("byteBuf......."+byteBuf);
 
while(!end)
{
//dis.read(byteBuf,0,lineEndBytes.length);
String t = "";
if(byteBuf != null)
{
dis.read(byteBuf,0,lineEndBytes.length);
t = new String(byteBuf);
}
//System.out.print(t); //uncomment if you want to see what the lines actually look like
if(t.equals(lineEnd))
end=true;
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
 
public void run()
{
connect();
readStream();
}
 
/*public static void main(String[] args)
{
JFrame jframe = new JFrame();
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
AxisCamera axPanel = new AxisCamera();
AxisCamera axPanel = new AxisCamera(jframe);
new Thread(axPanel).start();
jframe.getContentPane().add(axPanel);
jframe.pack();
jframe.show();
}
*/
}

Use to ajax for php page

rueben — Sat, 11 Jul 2009 21:40:48 +0000

AJAX Code:

ajaxpg.js

^?View Code JAVASCRIPT

var http_request=false;
 
  function send_request(url){
 
    http_request=false;
 
    if(window.XMLHttpRequest){
 
     http_request=new XMLHttpRequest();
 
     if(http_request.overrideMimeType){
 
       http_request.overrideMimeType("text/xml");
 
     }
 
    }
 
    else if(window.ActiveXObject){
 
     try{
 
      http_request=new ActiveXObject("Msxml2.XMLHttp");
 
     }catch(e){
 
      try{
 
      http_request=new ActiveXobject("Microsoft.XMLHttp");
 
      }catch(e){}
 
     }
 
    }
 
    if(!http_request){
 
     window.alert("XMLHttp object creation failed");
 
     return false;
 
    }
 
    http_request.onreadystatechange=processrequest;
 
    http_request.open("GET",url,true);
 
    http_request.send(null);
 
  }
 
  function processrequest(){
 
   if(http_request.readyState==4){//Object state
 
     if(http_request.status==200){//return Successful 
 
      document.getElementById(reobj).innerHTML=http_request.responseText;
 
     }
 
     else{ //Exception Errors
 
      alert("Exception Errors!");
 
     }
 
   }
 
  }
 
  function dopage(obj,url){
 
   document.getElementById(obj).innerHTML="Loading...";
 
   send_request(url);
 
   reobj=obj;
 
   }

index.php:

I am a content div on the display, when the flip action arises, the use of AJAX to update DIV to achieve the effect of this is the contents page shows the page code:

^?View Code PHP

< ?php header("Content-type: text/html;charset=utf-8"); ?>
 
<html>
 
<head>
 
 
< ?php
echo $this->form($this->forms['create_form']);
?>

In the View above (our index.php file), we define the Javascript function our custom helper will use – date_picker – that takes in the element name. In a real application, this would be the place to interface with another page (or maybe even some sort of Ajax request) to let the user pick the date. As it stands, though, we’re just putting our predefined date in the field. The PHP part is simple, just an execution of the form.

Ideally, you’d put any and all Javascript in a few files out in the public directory of your application rather than in the view itself, but since we’re going for simplicity here I’ve just put it in the page itself.

So, there we go – a simple method to make a custom form handler that you can use anywhere in your application. It’s pretty easy to see how you can expand upon this to make just about any kind of custom form element that you might want…

Being Binary in SOAP

rueben — Sat, 08 Mar 2008 11:20:53 +0000

Well, it might not be the best way to do it, but here’s a way I found to send binary data via PHP’s SOAP extension from one place to another:

Server:

^?View Code PHP

function recieveFile($data){
$data=base64_decode($data);
$path='/my/file/path/img_out.gif';
$fp=fopen($path,'w+');
if($fp){ fwrite($fp,$data); fclose($fp); }
return strlen($data).'written';
}
$input = file_get_contents(”php://input”);
$server = new SoapServer('http://[my url here]/binary.wsdl',array('encoding'=>'ISO-8859-1'));
$server->addFunction('recieveFile');
$server->handle();

and the Client:

^?View Code PHP

ini_set("soap.wsdl_cache_enabled", "0");
//send binary data
$client=new SoapClient('http://[my url here]/binary.wsdl',array('encoding'=>'ISO-8859-1'));
$data=file_get_contents('/my/file/path/img_to_send.gif');
$ret=$client->recieveFile(base64_encode($data));
print_r($ret);
[/code]
 
It's pretty basic - the client just reads in the file's information, runs it through a call to <a href="http://php.net/base64_encode">base64_encodea> before it's sent off to the server. Once it's there a mirror call to <a href="http://php.net/base64_decode">base64_decodea> gets the content back to normal and it's written out to the "img_out.gif" file on the remote server.
 
It's probably not the best way to do it, but its one that I've found that works quickly and easily. I tried to just send the binary data without base64 encoding it and it didn't want to cooperate (it was only getting the first chunk of data). I don't know how well it'll perform with larger files, though - we shall see.

Has optimized PHP click number statistics code

rueben — Fri, 07 Mar 2008 17:54:30 +0000

Has optimized PHP click number statistics code< ?php error_reporting(E_ALL);


$ROOT_PATH = '../';
include_once($ROOT_PATH . "include/config.php");$update_time = 1800;//The refresh time, second
$article_id = (isset($_GET['article_id']) && is_numeric($_GET['article_id']) && $_GET['article_id'] > 0) ? intval($_GET['article_id']) : 0;

if ($article_id > 0) {

    $filename = $ROOT_PATH . 'log/click_log.txt';


    $s = '';

    if (file_exists($filename)) {

        $content = file_get_contents($filename);

        $d_ary = array();

        if ($content) {

            $ary = explode("\n", $content);

            foreach ($ary as $line) {

                $data_ary = explode('|', $line);

                if (is_numeric($data_ary[0]) && is_numeric($data_ary[1])) {

                    $d_ary[$data_ary[0]] = $data_ary[1];

                }

            }

        }

        if (array_key_exists($article_id, $d_ary)) {

            $d_ary[$article_id] = $d_ary[$article_id]+1;//Increases 1 click

        } else {

            $d_ary[$article_id] = 1;

        }

        foreach ($d_ary as $key => $val) {

            $s .= $key . '|' . $val . "\n";

        }

    } else {

        $s .= $article_id . '|1' . "\n";//Initialization record file

    }
    //Writes file

    $fp = fopen($filename, "w");

   //Locking

if (flock($fp, LOCK_EX)) {

    fwrite($fp, $s);

    flock($fp, LOCK_UN); //release locks

}

    //fwrite($fp, $s);

    fclose($fp);

    @chmod($filename, 0777);
    $last_update = file_get_contents('../log/last_update.txt');
    $last_update = intval($last_update);

    if (($last_update + $update_time) < time()) {

        require_once("adodb.inc.php");

        $db = NewADOConnection("$DB_TYPE");

        $db->debug = true;
        $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;

        if (!$db->Connect("$DB_HOST", "$DB_USER", "$DB_PASS", "$DB_DATABASE")) {

            exit(Error ... ');

        }
        $content = file_get_contents($filename);

        $d_ary = array();

        if ($content) {

            $ary = explode("\n", $content);

            foreach ($ary as $line) {

                $data_ary = explode('|', $line);

                if (is_numeric($data_ary[0]) && is_numeric($data_ary[1])) {

                    $sql = "UPDATE article SET hits=hits+" . $data_ary[1] . " WHERE id=" . $data_ary[0];

                    $db->Execute($sql);

                }

            }

        }
         $fp = fopen($filename, "w");

        fwrite($fp, '');

        fclose($fp);

        @chmod($filename, 0777);

        $fp = fopen('../log/last_update.txt', "w");

        fwrite($fp, time());

        fclose($fp);

        @chmod('../log/last_update.txt', 0777);  
        $db->Close();

    }

    exit();

}
?>

Simple yet powerfull PHP class to parse RSS.

rueben — Fri, 07 Mar 2008 17:36:33 +0000

/* ====================================================================== lastRSS 0.9.1 Simple yet powerfull PHP class to parse RSS files. by Vojtech Semecky, webmaster @ oslab . net Latest version, features, manual and examples: http://lastrss.oslab.net/

http://www.easemarry.com/blog ---------------------------------------------------------------------- LICENSE This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.


 To read the license please visit http://www.gnu.org/copyleft/gpl.html

 ======================================================================

*/
/**

* lastRSS

* Simple yet powerfull PHP class to parse RSS files.

*/

class lastRSS {

    // -------------------------------------------------------------------

    // Public properties

    // -------------------------------------------------------------------

    var $default_cp = 'UTF-8';

    var $CDATA = 'nochange';

    var $cp = '';

    var $items_limit = 0;

    var $stripHTML = False;

    var $date_format = '';


    // -------------------------------------------------------------------

    // Private variables

    // -------------------------------------------------------------------

    var $channeltags = array ('title', 'link', 'description', 'language', 'copyright', 'managingEditor', 'webMaster', 'lastBuildDate', 'rating', 'docs');

    var $itemtags = array('title', 'link', 'description', 'author', 'category', 'comments', 'enclosure', 'guid', 'pubDate', 'source');

    var $imagetags = array('title', 'url', 'link', 'width', 'height');

    var $textinputtags = array('title', 'description', 'name', 'link');
    // -------------------------------------------------------------------

    // Parse RSS file and returns associative array.

    // -------------------------------------------------------------------

    function Get ($rss_url) {

        // If CACHE ENABLED

        if ($this->cache_dir != '') {

            $cache_file = $this->cache_dir . '/rsscache_' . md5($rss_url);

            $timedif = @(time() - filemtime($cache_file));

            if ($timedif < $this->cache_time) {

                // cached file is fresh enough, return cached array

                $result = unserialize(join('', file($cache_file)));

                // set 'cached' to 1 only if cached file is correct

                if ($result) $result['cached'] = 1;

            } else {

                // cached file is too old, create new

                $result = $this->Parse($rss_url);

                $serialized = serialize($result);

                if ($f = @fopen($cache_file, 'w')) {

                    fwrite ($f, $serialized, strlen($serialized));

                    fclose($f);

                }

                if ($result) $result['cached'] = 0;

            }

        }

        // If CACHE DISABLED >> load and parse the file directly

        else {

            $result = $this->Parse($rss_url);

            if ($result) $result['cached'] = 0;

        }

        // return result

        return $result;

    }

   �

    // -------------------------------------------------------------------

    // Modification of preg_match(); return trimed field with index 1

    // from 'classic' preg_match() array output

    // -------------------------------------------------------------------

    function my_preg_match ($pattern, $subject) {

        // start regullar expression

        preg_match($pattern, $subject, $out);
        // if there is some result... process it and return it

        if(isset($out[1])) {

            // Process CDATA (if present)

            if ($this->CDATA == 'content') { // Get CDATA content (without CDATA tag)

                $out[1] = strtr($out[1], array(''', ']]>'=>''));

            } elseif ($this->CDATA == 'strip') { // Strip CDATA

                $out[1] = strtr($out[1], array(''', ']]>'=>''));

            }
            // If code page is set convert character encoding to required

            if ($this->cp != '')

                //$out[1] = $this->MyConvertEncoding($this->rsscp, $this->cp, $out[1]);

                $out[1] = iconv($this->rsscp, $this->cp.'//TRANSLIT', $out[1]);

            // Return result

            return trim($out[1]);

        } else {

        // if there is NO result, return empty string

            return '';

        }

    }
    // -------------------------------------------------------------------

    // Replace HTML entities &something; by real characters

    // -------------------------------------------------------------------

    function unhtmlentities ($string) {

        // Get HTML entities table

        $trans_tbl = get_html_translation_table (HTML_ENTITIES, ENT_QUOTES);

        // Flip keys<==>values

        $trans_tbl = array_flip ($trans_tbl);

        // Add support for ' entity (missing in HTML_ENTITIES)

        $trans_tbl += array(''' => "'");

        // Replace entities by values

        return strtr ($string, $trans_tbl);

    }
    // -------------------------------------------------------------------

    // Parse() is private method used by Get() to load and parse RSS file.

    // Don't use Parse() in your scripts - use Get($rss_file) instead.

    // -------------------------------------------------------------------

    function Parse ($rss_url) {

        // Open and load RSS file

        if ($f = @fopen($rss_url, 'r')) {

            $rss_content = '';

            while (!feof($f)) {

                $rss_content .= fgets($f, 4096);

            }

            fclose($f);
            // Parse document encoding

            $result['encoding'] = $this->my_preg_match("'encoding=[\'\"](.*?)[\'\"]'si", $rss_content);

            // if document codepage is specified, use it

            if ($result['encoding'] != '')

                { $this->rsscp = $result['encoding']; } // This is used in my_preg_match()

            // otherwise use the default codepage

            else

                { $this->rsscp = $this->default_cp; } // This is used in my_preg_match()
            // Parse CHANNEL info

            preg_match("'(.*?)'si", $rss_content, $out_channel);

            foreach($this->channeltags as $channeltag)

            {

                $temp = $this->my_preg_match("'<$channeltag.*?>(.*?)'si", $out_channel[1]);

                if ($temp != '') $result[$channeltag] = $temp; // Set only if not empty

            }

            // If date_format is specified and lastBuildDate is valid

            if ($this->date_format != '' && ($timestamp = strtotime($result['lastBuildDate'])) !==-1) {

                        // convert lastBuildDate to specified date format

                        $result['lastBuildDate'] = date($this->date_format, $timestamp);

            }
            // Parse TEXTINPUT info

            preg_match("']*[^/])>(.*?)'si", $rss_content, $out_textinfo);

                // This a little strange regexp means:

                // Look for tag  with or without any attributes, but skip truncated version  (it's not beggining tag)

            if (isset($out_textinfo[2])) {

                foreach($this->textinputtags as $textinputtag) {

                    $temp = $this->my_preg_match("'<$textinputtag.*?>(.*?)'si", $out_textinfo[2]);

                    if ($temp != '') $result['textinput_'.$textinputtag] = $temp; // Set only if not empty

                }

            }

            // Parse IMAGE info

            preg_match("'(.*?)'si", $rss_content, $out_imageinfo);

            if (isset($out_imageinfo[1])) {

                foreach($this->imagetags as $imagetag) {

                    $temp = $this->my_preg_match("'<$imagetag.*?>(.*?)'si", $out_imageinfo[1]);

                    if ($temp != '') $result['image_'.$imagetag] = $temp; // Set only if not empty

                }

            }

            // Parse ITEMS

            preg_match_all("'(.*?)'si", $rss_content, $items);

            $rss_items = $items[2];

            $i = 0;

            $result['items'] = array(); // create array even if there are no items

            foreach($rss_items as $rss_item) {

                // If number of items is lower then limit: Parse one item

                if ($i < $this->items_limit || $this->items_limit == 0) {

                    foreach($this->itemtags as $itemtag) {

                        $temp = $this->my_preg_match("'<$itemtag.*?>(.*?)'si", $rss_item);

                        if ($temp != '') $result['items'][$i][$itemtag] = $temp; // Set only if not empty

                    }

                    // Strip HTML tags and other bullshit from DESCRIPTION

                    if ($this->stripHTML && $result['items'][$i]['description'])

                        $result['items'][$i]['description'] = strip_tags($this->unhtmlentities(strip_tags($result['items'][$i]['description'])));

                    // Strip HTML tags and other bullshit from TITLE

                    if ($this->stripHTML && $result['items'][$i]['title'])

                        $result['items'][$i]['title'] = strip_tags($this->unhtmlentities(strip_tags($result['items'][$i]['title'])));

                    // If date_format is specified and pubDate is valid

                    if ($this->date_format != '' && ($timestamp = strtotime($result['items'][$i]['pubDate'])) !==-1) {

                        // convert pubDate to specified date format

                        $result['items'][$i]['pubDate'] = date($this->date_format, $timestamp);

                    }

                    // Item counter

                    $i++;

                }

            }
            $result['items_count'] = $i;

            return $result;

        }

        else // Error in opening return False

        {

            return False;

        }

    }

}
?>

http://www.easemarry.com/blog

Give Your Visitors a Rough Time

rueben — Fri, 07 Mar 2008 09:51:56 +0000

Toby Somerville recently blogged about giving visitors a rough time – instead of displaying exact timestamps, providing a rough written approximation of the time.

Toby suggested that we generally communicate in approximate times, but on the web work with exact timestamps. His idea was that by displaying the time as you would describe it verbally, he could better communicate the time in a visitor-friendly way.

After reading his post, I understood the merits of the approach, but it struck me that a relative time might be a little more useful for many situations. For example, in a fast moving discussion, a short timestamp (e.g. 8:30 AM) as well as a verbal summary of how long ago the time was (e.g. “4 hours ago”, “20 minutes ago”) are most useful to the user. In fact, this is precisely what Gmail does:

A common feature of Gmail’s timestamp system is approximation, similar to what Toby was getting at. For example, as you approach 60 minutes in the hour, Gmail seems to switch from “x minutes ago” to “1 hour ago”, even if you’re not quite there.

Now, I figured this could be achieved very easily in PHP – and it could. Here’s the code:
$hour = (int) date('g'); $minute = (int) date('i');switch($minute){ case ($minute >=0 && $minute <5): $roughTime = numberToWord($hour).'-ish'; break; case ($minute >=5 && $minute <14): $roughTime = 'just gone '.numberToWord($hour); break; case ($minute >=15 && $minute <20): $roughTime = 'quarter past '.numberToWord($hour); break; case ($minute >=20 && $minute <25): $roughTime = 'nearly half '.numberToWord($hour); break; case ($minute >=25 && $minute <35): $roughTime = 'half '.numberToWord($hour); break; case ($minute >=35 && $minute <40): $roughTime = 'just gone half '.numberToWord($hour); break; case ($minute >=40 && $minute <50): $roughTime = 'quarter to '.numberToWord($hour + 1); break; case ($minute >=50): $roughTime = 'nearly '.numberToWord($hour +1); break; }function numberToWord($number){ switch($number){ case 1: $word = 'one';break; case 2: $word = 'two';break; case 3: $word = 'three';break; case 4: $word = 'four';break; case 5: $word = 'five';break; case 6: $word = 'six';break; case 7: $word = 'seven';break; case 8: $word = 'eight';break; case 9: $word = 'nine';break; case 10: $word = 'ten';break; case 11: $word = 'eleven';break; case 13: $word = 'one';break; default: $word = 'twelve';break; } return $word; } echo 'Its '.$roughTime; ?>
It’s got a few unusual constants in there – the number values refer to 75% of the number of seconds in a particular period of time. 75% seemed like a reasonable measure beyond which we could round up – for example, the function will say “45 seconds ago” for 45 seconds, but “1 minute ago” for 46. The same goes for 2700 seconds, equal to 45 minutes, and 64800 seconds, or eighteen hours. Beyond this it simply uses the number of days.The function will give you values like “20 seconds ago”, “10 minutes ago”, “3 hours ago” etc. Adding the Numbers_Words PEAR package might improve readability of your timestamps even more So give it a go – it’s especially handy for message boards, comment lists and news readers, especially with threaded discussion. The code is very basic at the moment, suitable for adapting to whatever purpose you see fit.

Debugging PHP code using debug_backtrace

rueben — Fri, 07 Mar 2008 09:38:18 +0000

Most of the PHP developers debug php code in their local machine just by trial and error using “print_r”,”var_dump” and “echo”. They dont write unit tests or follow any advanced debugger like xdebug. But the problem of using these methods is you cannot fool proof your code and their might be some bugs still present in your code. Lets see how can we debug our code more effectively getting more information from the php interpreter itself. There is a nice function called debug_backtrace() is available in PHP to trace the root of an error. As the name implies, you can trace the execution of you code which produces the error. Have a look at the following code.

function processUserInput($a, $b) { echo divide($a,$b); } function divide($c, $d) { print_r(debug_backtrace()); } echo processUserInput(4,0); ?>This will output the following one


Array (
[0] => Array     (
             [file] => PHPDocument1
             [line] => 5
             [function] => divide
             [args] => Array
                 (
                     [0] => 4
                     [1] => 0
                 )
          )
[1] => Array         (
             [file] => PHPDocument1
             [line] => 14
             [function] => processUserInput
             [args] => Array                 (
                     [0] => 4
                     [1] => 0
                 )
          )
[2] => Array         (
             [file] => /home/hasin/Zend/ZendStudio-5.5.0/bin/php5/dummy.php
             [line] => 1
             [args] => Array                 (
                     [0] => PHPDocument1
                 )
              [function] => include
         )
  )

5 Ways to be a Better PHP Developer

rueben — Fri, 07 Mar 2008 09:26:42 +0000

Often, an inexperienced PHP developer will hop onto IRC and ask a question in ##php on Freenode. And if the question is trivial, the answer seems obvious or they simply seem like a newbie, they may soon find themselves bombarded with such comments as “RTFM”, “Go learn PHP”, “We are not your personal tutors” or simply “You need to become a better PHP developer”. So, how is it that one becomes a better PHP developer? In this post, I’ll outline five ways to be a better developer, improve your productivity, write less code and achieve more with your web applications.There’s always more to learn when it comes to PHP development. New core functions, new frameworks, new design patterns, new code documentation styles. Here are some of the best ways you can become a better PHP developer.

1. Read the manual
I really can’t emphasize this enough – there’s a lot to be learned just reading the PHP manual. Especially check out the string and array functions. There’s a lot of functionality available right there, and often by reading through the manual you’ll find you’ve been reinventing the wheel in past projects when you could have just used a core function. The manual is your friend.

2. Browse through some code
PHP has a lot of open source code out there. So why not learn from it? Download an open source PHP application and have a read through the code. The bigger projects are probably better, as they’ll have more complex structures and systems in place but also more thorough documentation explaining it all. Check out SourceForge.net if you can’t find a good place to start.

3. Learn a new framework
There are more PHP frameworks out there than you’ve had hot dinners; a lot of them are open source and available online if you know where to look. Try the major ones first – phpframeworks.com has a good list. Your framework can never be entirely complete, your next job may require a different framework and you might just find the functionality of another comes in handy in one of your projects.

4. Research
You’ve probably heard a lot of terminology and discussed in the context of PHP web development. From OOP to MVC, KISS to DRY, YAML to INI, even REST to XML-RPC, there are hundreds of technical concepts out there that could directly relate to your work. You may have formed a basic understanding of them, but do you really know what they are or what they mean for you? Spend some time doing real research; Wikipedia is a good place to start. You’re bound to learn something new.

5. Learn OOP
Maybe this follows on a little from the previous point, but OOP is more important than you think. Do you really know about PHP5’s implementation OOP? For example, are you familiar with abstract classes, interfaces, the implements keyword, static methods and properties, the ‘protected’ access modifier? Even many experienced PHP developers fall down in this area. If you make use of the features of OOP, you could save yourself a lot of development time.

So there you have it. Five, straightforward yet significant ways to be a better PHP developer.

http://www.developertutorials.com/blog/web/5-ways-to-be-a-better-php-developer-36/

The relative way transforms the absolute way

rueben — Thu, 06 Mar 2008 18:01:41 +0000

Withdraws in Gregarius a function. May turn into the homepage in relative way automatic extension the absolute way.

function relative_to_absolute($content, $feed_url) {
    preg_match(’/(http|https|ftp):\/\//’, $feed_url, $protocol);
    $server_url = preg_replace(”/(http|https|ftp|news):\/\//”, “”, $feed_url);
    $server_url = preg_replace(”/\/.*/”, “”, $server_url);

    if ($server_url == ”) {
        return $content;
    }

    if (isset($protocol[0])) {
        $new_content = preg_replace(’/href=”\//’, ‘href=”‘.$protocol[0].$server_url.’/', $content);
        $new_content = preg_replace(’/src=”\//’, ’src=”‘.$protocol[0].$server_url.’/', $new_content);
    } else {
        $new_content = $content;
    }
    return $new_content;
}
?>

Uses KSES to filter the data-in safely

rueben — Thu, 06 Mar 2008 17:53:29 +0000

The safe first principle is never needs to believe any exterior data in PHP! How effective achieves this is one of each development personnel’s difficult. Before has not used webeditor, this basically quite good processing.

But if has used webeditor, how to guarantee that the user the data, simultaneously achieves safely (for example prevents the XSS crack), indeed is the headache question.

Here I recommend one to open the source tool – - KSES. KESS only permits the user input the data format and the attribute.

For example you only allowed the input saying

that

will include in that title to filter.

KSES is useful in WP and Gregarius, is a very easy to use thing. The use is also very simple, but is only not good, does not have the useful kind to seal, possibly this also has author own reason.

Example:

$kses_allowed = array (’address’ => array (),
‘a’ => array (’href’ => array (),
‘title’ => array (),
‘rel’ => array (),
‘rev’ => array (),
‘name’ => array ()),
‘abbr’ => array (’title’ => array ()),
‘acronym’ => array (’title’ => array ()),
‘b’ => array (),
‘big’ => array (),
‘blockquote’ => array (’cite’ => array ()),
‘br’ => array (),
‘button’ => array (’disabled’ => array (),
‘name’ => array (),
‘type’ => array (),
‘value’ => array ()),
‘caption’ => array (’align’ => array ()),
‘code’ => array (),
‘col’ => array (’align’ => array (),
‘char’ => array (),
‘charoff’ => array (),
’span’ => array (),
‘valign’ => array (),
‘width’ => array ()),
‘del’ => array (’datetime’ => array ()),
‘dd’ => array (),
‘div’ => array (’align’ => array ()),
‘dl’ => array (),
‘dt’ => array (),
‘em’ => array (),
‘fieldset’ => array (),
‘font’ => array (’color’ => array (),
‘face’ => array (),
’size’ => array ()),
‘form’ => array (’action’ => array (),
‘accept’ => array (),
‘accept-charset’ => array (),
‘enctype’ => array (),
‘method’ => array (),
‘name’ => array (),
‘target’ => array ()),
‘h1′ => array (’align’ => array ()),
‘h2′ => array (’align’ => array ()),
‘h3′ => array (’align’ => array ()),
‘h4′ => array (’align’ => array ()),
‘h5′ => array (’align’ => array ()),
‘h6′ => array (’align’ => array ()),
‘hr’ => array (’align’ => array (),
‘noshade’ => array (), ’size’ => array (),
‘width’ => array ()),
‘i’ => array (),
‘img’ => array (’alt’ => array (),
‘align’ => array (),
‘border’ => array (),
‘height’ => array (),
‘hspace’ => array (),
‘longdesc’ => array (),
‘vspace’ => array (),
’src’ => array (),
‘width’ => array ()),
‘ins’ => array (’datetime’ => array (),
‘cite’ => array ()),
‘kbd’ => array (),
‘label’ => array (’for’ => array ()),
‘legend’ => array (’align’ => array ()),
‘li’ => array (),
‘p’ => array (’align’ => array ()),
‘pre’ => array (’width’ => array ()),
‘q’ => array (’cite’ => array ()),
’s’ => array (),
’strike’ => array (),
’strong’ => array (),
’sub’ => array (),
’sup’ => array (),
‘table’ => array (’align’ => array (),
‘bgcolor’ => array (),
‘border’ => array (),
‘cellpadding’ => array (),
‘cellspacing’ => array (),
‘rules’ => array (),
’summary’ => array (),
‘width’ => array ()),
‘tbody’ => array (’align’ => array (),
‘char’ => array (), ‘charoff’ => array (),
‘valign’ => array ()),
‘td’ => array (’abbr’ => array (),
‘align’ => array (),
‘axis’ => array (),
‘bgcolor’ => array (),
‘char’ => array (),
‘charoff’ => array (),
‘colspan’ => array (),
‘headers’ => array (),
‘height’ => array (),
‘nowrap’ => array (),
‘rowspan’ => array (),
’scope’ => array (),
‘valign’ => array (),
‘width’ => array ()),
‘textarea’ => array (’cols’ => array (),
‘rows’ => array (), ‘disabled’ => array (),
‘name’ => array (),
‘readonly’ => array ()),
‘tfoot’ => array (’align’ => array (),
‘char’ => array (),
‘charoff’ => array (),
‘valign’ => array ()),
‘th’ => array (’abbr’ => array (),
‘align’ => array (),
‘axis’ => array (),
‘bgcolor’ => array (),
‘char’ => array (),
‘charoff’ => array (),
‘colspan’ => array (),
‘headers’ => array (),
‘height’ => array (),
‘nowrap’ => array (),
‘rowspan’ => array (),
’scope’ => array (),
‘valign’ => array (),
‘width’ => array ()),
‘thead’ => array (’align’ => array (),
‘char’ => array (),
‘charoff’ => array (),
‘valign’ => array ()),
‘title’ => array (),
‘tr’ => array (’align’ => array (),
‘bgcolor’ => array (),
‘char’ => array (),
‘charoff’ => array (),
‘valign’ => array ()),
‘tt’ => array (),
‘u’ => array (),
‘ul’ => array (),
‘ol’ => array (),
‘var’ => array ()
);
$string=kses($string, $kses_allowed);
?>

How to use Java to compile the NT service

rueben — Thu, 06 Mar 2008 17:17:39 +0000

1. NT services introduced
The so-called NT service, in fact is a kind of special application procedure so-called NT service, in fact is one may when the system initiation automatically adjoint system long time existence advancement which starts under certain status. Looks like FTP server, HTTP server, the off-line printing and so on to use the NT service the form to provide. This in fact similar Unix root daemon advancement. The NT service induces, NT service following several characteristics:

1st, may be self-starting, does not need to start alternately. This regarding the server is an important characteristic. Certainly, you may decide that serves whether self-starting, even may shield some service.

2nd, the NT service does not have the user interface, basically is similar a DOS procedure, because the NT service must the long time movement, therefore did not think that the ordinary win32 advancement has own contact surface equally. But the NT service may have the contact surface with the user to be interactive, this is a kind of special service advancement. May see the service advancement through the NT service supervisor

3rd, the NT service (Services Control Manager) the connection manages through SCM, the installment, the start, the stop, the removal and so on need the SCM interface function to carry on. Control panel’s service controller uses in SCM connection management system management system’s all services. In fact, but also has some may control the service the procedure or the order, has net.exe, the server supervisor and so on, SCM.exe and so on.

4th, these advancements by certain status movement, by facilitate carry on the server resources the deposit. In the ordinary circumstances uses in the territory the LocalSystem account number movement, this account number to this aircraft’s majority resources (, only if forbids to have the complete deposit jurisdiction specially), like this may guarantee the service routine “formidable”. But, also some services use the special account number movement, you may also establish a service specially the account number.

5th, by the system by the thread way movement, in the ordinary circumstances takes the system resources automatically, this has the difference with the ordinary advancement, if does not select the thread method, generally the advancement often consumes the entire CPU resources. Generally needs to exist at times, cannot the excessively many consumption resources duty service realize appropriately.

2. the Java compilation service’s preparation
1st, as localized realization, realizes NT the service Java procedure is certainly not 100% pure Java, depends on the standard class storehouse is only unable to realize our compilation NT service goal, (what therefore MS provided set of SDK for Java this article to use was Microsoft SDK for Java 4.0), mentioned how expansion class storehouse which and corresponding tool provided using MS, realized conforms to the procedure which the Windows platform needed. And included has realized the kind of storehouse API frame which as well as Java the NT service needed the translation class document assembles the standard the NT service routine tool. The SDK downloading way may search from www.microsoft.com/java/.

2nd, after installing SDK, may see in installs under the table of contents to have the jntsvc table of contents, this table of contents has contained the service.zip document, it in fact is a NT services kind of storehouse frame, sealed some NT service to realize the detail, caused us to be possible to defer to the detail which the frame realized us to care comfortably. Launches service.zip to develops machine’s system installation Service storehouse to Java expansion storehouse \ Winnt \ java \ TrustLib, if carries on the development under other operating system, according to the senate the system directorycarries on installs the document.

3rd, under this table of contents also some jntsvc.exe document, is also the Java NT Service meaning. The translation class document which after she may help you to realize will defer to SDK to provide the frame which realizes to assemble a standard NT service to be possible the execution document. JntSvc helped us already to translate in the good .class document foundation established all NT service routine to the characteristic, was the very important tool, how obtained the NT service to be decided by to use her effectively. For we can facilitate from any other table of contents control bench window transfer her, we the table of contents full path which is at JntSvc.exe joins the path environment variable. This may carry on the environment variable through the establishment system attribute high-quality attribute page in the middle of the hypothesis.

4th, defers to the request, we write each code, then the translation compiles the Java procedure, obtains the class document. We will certainly not start her in Vj Studio, because it did not have to be possible at present the execution document entrance, the system will be unable to start her. In order to obtain the NT service routine, we need to carry out an order in the class document in the table of contents control bench window: X:>jntsvc *.class /OUT: ECHOSvc.exe /SVCMAIN: EchoSvc “/SERVICENAME:ECHOSvc”. The concrete Jntsvc parameter we may look at jntsvc -? Obtains, here meaning is probably: Assembles NT current directory’s under all class document the service advancement exe document, document named EchoSvc.exe, the service start entrance in echosvc.class,in the registry the corresponding service name is EchoSvc which the /Servicename parameter assigns. If has many NT services to need to assemble in a Exe document, but may also after /Out parameter assigns each service demonstration name. the /SVCMAIN parameter assigns the service the entrance, which kind of example beginning the so-called entrance is refers to the service to start is starts from.”/SERVICENAME: “the parameter will assign this service to appear by any name. These parameters are the jntsvc.exe practical tool needs to assemble the service station to the information, will translate after these information the .class document obtains one according to the win32 form request to be possible the execution document. What needs to pay attention, this exe document’s movement must have the JVM existence, she in fact is through explained that .class realizes the service to provide. If needs other expansion package, may through assign a other expansion package of position in the /Classpath parameter. Therefore in installs on the NT service machine which the Java compilation obtains to have JVM. If has IE5.x that not to need to worry about this question, the IE core module had already included JVM; But if is the IE6 edition, then needs to arrive at MS in the website to download JVM. If you spoke SDK for Java to install on the server are more convenient.

5th, if does not have what mistake, you will obtain one to be possible execution document echosvc.exe. Looks like the majority services to be possible the execution document to be the same, it may install in the system: echosvc.exe – install, this process will increase some projects toward the system registry, specially about the service project, SCM might also list this to serve. We may use DOS under the control bench the NT service control to order Net start/stop to test serve whether to look like the ordinary service to be possible really to defer to the standard way equally to control, certainly will serve in the middle of the supervisor to open stops this service not to have the question.

3. when the Echo service’s type example the system writes down the service advancement, the entrance is in the EchoSvc structure function, we may see this structure function has with the general procedure entrance main() :

import com.ms.service.* ;

public class EchoSvc extends Service

{ static Thread mainSvc=null ;

public EchoSvc (String[] args)

{

CheckPoint(1000);

setRunning(ACCEPT_SHUTDOWN | ACCEPT_PAUSE_CONTINUE |ACCEPT_STOP);
mainSvc = new Thread((Runnable) new MainSvcThread());

mainSvc.start();

System.out.println( “The Echo Service Was Started Successfully!”);

}

CheckPoint is the Service synchronized method, the indicating system is changing the service the condition, needs to let the system wait 1 second. What here we start is a thread, in fact is equal to an advancement, she is serves the advancement the main thread. We respond the control which in this thread SCM serves regarding this. The approximate expression is:

public class MainSvcThread implements Runnable

{

public static boolean STOP = false;

public static boolean PAUSE = false;

public void run()

{

while (!STOP)

{

while (!PAUSE && !STOP)

{

www.easemarry.com/blog

…

}

try

{Thread.sleep(5000);}

catch (InterruptedException e)

{ }

}

try

{Thread.sleep(1000);}

catch (InterruptedException ie)

{}
}
}
}

Middle the service logical control, we will realize the Echo service specifically. Our Echo service monitors 2002 ports, receive client side any line of inputs, then adds on “Echo: ” latter returns. If the client side inputs a quit phrase that to serve thought that this is the customer closes this sleeve joint character the order, the automatic shut-off current sleeve joint character connection, will stop to the current connection service. Concrete realizes (the EchoThread.java code):

public void run(){

String line;

DataInputStream in;

PrintWriter out;

boolean exitflag=false;

try{

in=new DataInputStream(so.getInputStream()) ;

out=new PrintWriter(new DataOutputStream(so.getOutputStream())) ;
out.println(”You have connected to EchoSvc!”);

out.flush();

while((line=in.readLine())!=null)
{

line=line.trim();

if (line.equalsIgnoreCase(”quit”) )
{

out.println(”ECHO:” + line );

out.flush();

return;

}

else

{

out.println(”ECHO:” + line );

out.flush();

}

in.close();

out.close();

}

catch(IOException ioe)

{}

}

The Echo service is mainly returns the customer transmission character obviously gives the customer, and adds on Echo: The prefix, indicated that is content which returns from the server. If the customer input “quit” that expressed that this is requests the server to stop the service the performance. How to debug the NT service advancement project. If provides the client side directly this function call the ECHO sleeve joint character service, in logic does not have what mistake, but is unable to support many users also to visit. For can provide the multi-services, at the same time the permission are also many a user to connect this server (this kind of situation in many network services not to be possible few), we may this logic, in founds by MainSvcTread in the thread realizes, moreover may allow many users simultaneously to visit this service. The concrete expression realizes in the MainSvcTread run function:

while(ListenThreadCount
{
server=li.accept();

EchoThread p=new EchoThread(server,this);

Thread t=new Thread(g,(Runnable)p) ;

t.start();

ListenThreadCount++;

}

Above the reference mentioned tool Jntsvc.exe may help you to say translates the good .class document to assemble the exe document, moves this article and adds on – the install parameter to be possible to help you to speak a good service automatically to increase to the registry, might be similar to through the service supervisor or the suitable utility program other services carries on equally controls. The removal service uses – the uninstall parameter.

This routine uses the sleeve joint character, the multithreading to realize the technology to explain that realizes Java to compile the NT service, according to this in fact is similar such many network aspect the service to be possible to realize according to the standard, for example POP3 service, FTP service, even WWW service and so on. We also contact have looked like Java and so on Tomcat, Jrun often to use the NT service form using the server in the NT platform start, then you may also attempt through this example compiles own Java service application.

Finally, if needs to debug the NT service logic, may use the means which is accommodating. We increase a Main static state method in EchoSvc.java, then has a EchoSvc example, like this is the Exe document which standard VJ produces, we may remove the hideaway using the Vj debugging function the mistake. Once after the accent passes, our annotation falls the main static state method, after the translation, may obtain one to debug the good NT service.

4. why can use Java to compile the NT service

to compare VC and so on “original installation” the NT service development way saying that the Java development pattern may be quicker, because possesses the service frame through to expand the Services kind nearly to be possible to achieve, saves many complex detail processing. The Java language has provided the rich kind of storehouse, may for own use, be possible to raise the efficiency, moreover compiles the program structure clear understand easily, to facilitate the later maintenance.

Java provides the exception handling pattern, may let us write the structure to be good, safer code. Considers if compiles because the service advancement uses the VC compilation actually to forget to some memory release, then serves starts the latter period of time, because memory divulging causes the service performance to drop, even the system collapses; But Java language characteristic may cause us not to need the time to guard against the memory management, may even more pay attention to the service logic itself, is realizes is more effective.

Uses VC, if compilation multithreading service advancement, although may realize, but will be quite troublesome. But serves the advancement multithreading is each performance good service necessary characteristic nearly, the Java language itself may provide this aspect good support, simultaneously Java oneself to the network natural good support, makes each kind of network sleeve joint character programming to be easy.

Finally, if does not use other expansion storehouse, we realize very easily this service logic on other operating system. Compiles the good NT service routine, may, in removes a kind of quotation which expands after the Ms related localization realizes, facilitates transplants to platforms and so on other for example Linux, as far as possible to Java “a compilation, everywhere may move”ideal boundary stem for stem.

5, sound code

/* attaches ZIP document newspaper including demonstration’s complete project document, but also after having the translation NT service to be possible the execution document, you may test this to serve the exe document directly the installment, the service to open stop */

/*EchoSvc.java*/

import com.ms.service.* ;

public class EchoSvc extends Service

{

static Thread mainSvc=null ;

public EchoSvc (String[] args) {

CheckPoint(1000);
setRunning(ACCEPT_SHUTDOWN | ACCEPT_PAUSE_CONTINUE |ACCEPT_STOP);

mainSvc = new Thread((Runnable) new MainSvcThread());

mainSvc.start();

System.out.println( “The Echo Service Was Started Successfully!”);

}

/*————– EchoSvc.java——————-*/

/*MainSvcThread.java*/

import java.io.*;

import java.net.*;

public class MainSvcThread implements Runnable {

public static boolean STOP = false;

public static boolean PAUSE = false;

public int ListenThreadCount=0;

int maxSocket=10;

int SvcPort=2002;

public void run()

{

try

{

while (!STOP)

{

while (!PAUSE && !STOP)

{

Socket server;

ServerSocket li=new ServerSocket(SvcPort);

ThreadGroup g=new ThreadGroup(”EchoThreads”);

System.out.println(”Echo service starting…”);

while(ListenThreadCount {

server=li.accept();

EchoThread p=new EchoThread(server,this);

Thread t=new Thread(g,(Runnable)p) ;

t.start();

ListenThreadCount++;

}

try

{

Thread.sleep(5000);

}

catch (InterruptedException e)

{ }

}

try

{

Thread.sleep(1000);

}

catch (InterruptedException ie)

{ }

}

catch (IOException ioe)

{}

}

/*————– MainSvcThread.java——————-*/

/*EchoThread.java*/

import java.io.*;

import java.net.*;

public class EchoThread implements Runnable

{

Socket so=null;

MainSvcThread p;

public void run()

{

String line;

DataInputStream in;

PrintWriter out;

boolean exitflag=false;

try

{

in=new DataInputStream(so.getInputStream()) ;

out=new PrintWriter(new DataOutputStream(so.getOutputStream())) ;

out.println(”You have connected to EchoSvc!”);

out.flush();

while((line=in.readLine())!=null && ! exitflag)

{

line=line.trim();

if (line.equalsIgnoreCase(”quit”) )

{

in.close();

out.flush();

out.close();

p.ListenThreadCount –;

return;

}

else

{

out.println(”ECHO:” + line );

out.flush();

}

in.close();

out.close();

p.ListenThreadCount –;

}

catch(IOException ioe)

{}

}

EchoThread(Socket s,MainSvcThread parent)

{

so=s;

p= parent;

}

}
http://www.easemarry.com

Raises the efficiency in PHP mode through the factory pattern [reprint]

rueben — Thu, 06 Mar 2008 09:32:05 +0000

Conducting large-scale system development time, I always worry whether it should include every possible use of the class library document.
If it is included in use, the development will bring great trouble. Because I am impossible to know in advance which place will use which kind. Moreover, if each page, in accordance with the need to include or require, which is a headache, we because of will often forget that include will cause warning or fatal.

       If the overall situation in a document containing all of the class library, and then all the pages contain the whole document. Thus, although simplified the work, but has actually brought the efficiency drop. Because php will contain to each document to carry on the examination. Although the PHP efficiency is very high, but examines one big pile of kind, will bring some performance the drop, specially in a large-scale system.
        Has the method to be possible to satisfy both sides? Certainly there,The method is the factory pattern.
        We have established the following four documents.

index.php



include_once("f.inc.php");

$f=new factory;

$t1=&$f->create('T1');

echo $t1->getName();

echo $config;

?>  

f.inc.php


class factory

{

    function factory()

    {

        $this->mClasses=array('T1'=>'t1.inc.php','T2'=>'t2.inc.php');

    }

    function &create($class)

    {

        if (!class_exists($class))

        {

            require_once($this->mClasses[$class]);

        }

        return new $class;

    }

}

?>

t1.inc.php

global $config;

$config='surfchen';

class T1

{

    var $mName='name::T1';

    function getName()

    {

        return $this->mName;

    }

}

?>

t2.inc.php

class T2

{

    function T2()

    {

        echo 't2 is ok';

    }

}

?>

In index.php, we passed a factory to create other instance,

In the factory, the preservation of an array $this->mClasses,format for the array ( “class name” => “class file path”).

We through the factory::create() to create an instance, in create(), the first test of whether to exist, if don’t exist, based on $this-> mClasses category corresponding to the type of document contains come. Then create and return a such examples.

Thus, we need only to factory-type document contains implementation of the script (example:index.php) on it.
Everybody possibly also noted in t1.inc.php in two lines of code.
Global $config;
$Config = ’surfchen’;

        Why do we need global? Because t1.inc.php is include in factory::create, in the t1 document’s variables will approve the default function to the class. Therefore,we need one of the variables (example: $config) to index.php to global access to.
        Operation index.php, will be output
        Name:: T1surfchen

http://www.easemarry.com/blog/

Skill: PHP optimization, buffering, compression practical solutions

rueben — Thu, 06 Mar 2008 02:09:15 +0000

As the popular Web programming language, the PHP biggest superiority is a speed. PHP4 already did in this aspect has been good, and you almost could not find it faster than the script programming language. However, if your application load large, and bandwidth is relatively small, or there are other bottlenecks affecting the performance of your server, then you may wish to try out for you the author of several prescription to see if it works.

First, code optimization

On a code optimization, perhaps you think is neat and clear code, but this is not the meaning of this, because if we seek rate, we should PHP source to be adjusted accordingly. Generally speaking is to remove redundant Notes, code unreadable. But this is a good accomplishment for programmers, it is inconceivable. Fortunately Zend Technologies announced the Zend engine optimization can help you do this. It is now free, but you must follow Zend Optimizer license. This product can be the engine optimized intermediate code.

This engine is relatively simple to install, download corresponding platform versions later, untied compressed files, and then in the php.ini file add the following two lines inside, restart the Web server, to get.

Zend_optimizer.optimization_level = 15
Zend_extension = “/ path / to / ZendOptimizer.so”
Zend_loader.enable = Off

If Win32 platform, it will be:

Zend_optimizer.optimization_level = 15
Zend_extension_ts = “C: /path / to / ZendOptimizer.dll”
Zend_loader.enable = Off

Ah! Not mistaken? How is three lines? In fact, the third line is optional. Seem to switch off because zend_loader can improve the speed, and is therefore worthy of this third line put php.ini. It must be noted that switching off is a prerequisite for the use of Zend you do not have encryption procedures.

Second, the buffer

If you want to further enhance the speed, we need to consider adopting buffer technology. Some optional solutions, including Zend Cache (test version), APC, and Afterburner Cache, such as another jpCache.

These are of a buffer module, the first time right. Php documents requested the intermediate code stored in the Web server’s memory, and then later on the request to return to “build good” version. This reduction of the disk to read and write, but in the memory, so this process can significantly improve application performance,

Off-the-shelf products such comparison, in the end choose whom?

Zend Cache is a good commercial product, in the first loading of those great PHP pages, you will clearly feel the speed increase, the server will leave more resources. Unfortunately, this product is to spend money, but in some cases, you may not mean the money.

Afterburner Cache is Bware Technologies products, is still in Beta version, and Zend Cashe appear to be the same, but it did not achieve good results Zend Cache, we can not and Zend engine optimization work together, but it is free, so I use this module.

APC (Alternative PHP Cache) is issued by the Community Connect has a free module can be used in production may seem environment.

Third, Web content compression

The increasingly crowded network, saving bandwidth like water conservation, is very much worth advocated. According to IETF standards, the majority of the browser should support the use of the contents of gzip compression. In other words you can use gzip compressed content sent to the browser, the browser will be transparent to extract the data.

Mod_gzip is Remote Communications Company introduced free Apache module, able to static Web content compression sent to the browser. For most static pages, this module is suitable. Although

Remotecommunications company said that this module supports all those who mod_php, mod_perl, mod what the dynamic content, but it still does not work, mod_gzip mailing list, the problem is estimated to 1.3.14.6 f can be resolved.

If the dynamic content compression, we can use class.gzip_encode.php, one in the script at the beginning and end of the use of PHP. For the entire site is in the php.ini auto_prepend and auto_append in which the function call. You can read the details of the procedures, which notes very well, and the author almost anything to tell you. But before use, your PHP to build support for the zlib.

For PHP 4.0.4, a new solution is the use of ob_gzhandler, to achieve the above categories and the same effect, as long as simple php.ini joined in the following sentence can be:

Output_handler = ob_gzhandler;

This allows PHP output caching, and compression of all output. If there is anything special reasons do not want to have all the contents of compressed output, can be used in the. Htaccess files by adding the following line in the corresponding directory under the file compression.

Php_value output_handler ob_gzhandler

Can be directly added to the code in PHP:

Ob_start ( “ob_gzhandler”);

The compression technology is very effective, but Netscape Communicator users, because Bunaiyasu graphics files, so do not seem to complete the jpeg and gif file compression, IE do not have this problem.

Conclusion:

This paper discussed the use of technology should be able to improve the performance of your site, but it should be noted that:

– PHP may not lead to bottlenecks reasons, carefully examined for other reasons (for example: Database)

– You can not regulate the server performance to the highest state. Therefore, in the buffer prior to complain of PHP and consider whether to upgrade the server, or to use dynamic load balancing technology.

– Do not underestimate the content compression, in your 100 Mb of internal online PHP applications that improve the speed, do not forget to use the modem users where 100 Kb blame your HTML page.

http://www.easemarry.com/blog

Oracle class – PHP

rueben — Wed, 05 Mar 2008 11:51:17 +0000

class DB_Sql {
var $Debug = false;
var $Home = “/u01/app/oracle/ora90″;
var $Remote = 1;
/**
* http://www.easemarry.com/blog
* This Query will be sent directly after the first connection
* Example:
* var $ConnectQuery=”ALTER SESSION SET nls_date_language=german nls_date_format=’DD.MM.RRRR’”;
* -> Set the date format for this session, this is fine when your ora-role
* cannot be altered
*/
var $ConnectQuery=”;
/**
* Due to a strange error with Oracle 9i, Apache and PHP4
* you don’t need to set the ENV – on my system Apache will change to a zombie, if I don’t set this to FALSE!
* Instead I set these ENV-vars before the startup of apache.
* If unsure try it out, if it works.�
.*/
var $OraPutEnv = true;

var $Database = “”;
var $User = “”;
var $Password = “”;

var $Link_ID = 0;
var $Query_ID = 0;
var $Record = array();
var $Row;

var $Errno = 0;
var $Error = “”;
var $ora_no_next_fetch=false;
/* copied from db_mysql for completeness */
/* public: identification constant. never change this. */
var $type = “oracle”;
var $revision = “Revision: 1.3″;
var $Halt_On_Error = “yes”; ## “yes” (halt with message), “no” (ignore errors quietly), “report” (ignore errror, but spit a warning)

/* public: constructor */
function DB_Sql($query = “”) {
$this->query($query);
}

/* public: some trivial reporting */
function link_id() {
return $this->Link_ID;
}

function query_id() {
return $this->Query_ID;
}

”;
    ora_commiton($this->Link_ID);
   }
   if($this->Debug) {
    printf(”
connect() Obtained the Link_ID: $this->Link_ID
n”);
   }
   ## Execute Connect Query
   if ($this->ConnectQuery) {
    $this->query($this->ConnectQuery);
   }
  }
}

## In order to increase the # of cursors per system/user go edit the
## init.ora file and increase the max_open_cursors parameter. Yours is on
## the default value, 100 per user.
## We tried to change the behaviour of query() in a way, that it tries
## to safe cursors, but on the other side be carefull with this, that you
## don’t use an old result.
##
## You can also make extensive use of ->disconnect()!
## The unused QueryIDs will be recycled sometimes.

function query($Query_String)
{

  /* No empty query please. */
  if (empty($Query_String))
  {
   return 0;
  }

$this->connect();
$this->lastQuery=$Query_String;

  if (!$this->Query_ID) {
   $this->Query_ID= ora_open($this->Link_ID);
  }
  if($this->Debug) {
   printf(”Debug: query = %s
n”, $Query_String);
   printf(”
Debug: Query_ID: %d
n”, $this->Query_ID);
  }

  if(!@ora_parse($this->Query_ID,$Query_String)) {
   $this->Errno=ora_errorcode($this->Query_ID);
   $this->Error=ora_error($this->Query_ID);
   $this->halt(”
ora_parse() failed:
$Query_String
Snap & paste this to sqlplus!”);
  } elseif (!@ora_exec($this->Query_ID)) {
   $this->Errno=ora_errorcode($this->Query_ID);
   $this->Error=ora_error($this->Query_ID);
   $this->halt(”
n$Query_Stringn
Snap & paste this to sqlplus!”);
  }

$this->Row=0;

  if(!$this->Query_ID) {
   $this->halt(”Invalid SQL: “.$Query_String);
  }

return $this->Query_ID;
}

function next_record() {
  if (!$this->ora_no_next_fetch &&
  0 == ora_fetch($this->Query_ID)) {
   if ($this->Debug) {
    printf(”
next_record(): ID: %d Row: %d
n”,
    $this->Query_ID,$this->Row+1);
    // more info for $this->Row+1 is $this->num_rows(),
    // but dosn’t work in all cases (complicated selects)
    // and it is very slow here
   }
   $this->Row +=1;

   $errno=ora_errorcode($this->Query_ID);
   if(1403 == $errno) { # 1043 means no more records found
    $this->Errno=0;
    $this->Error=”";
    $this->disconnect();
    $stat=0;
   } else {
    $this->Error=ora_error($this->Query_ID);
    $this->Errno=$errno;
    if($this->Debug) {
     printf(”
%d Error: %s”,
     $this->Errno,
     $this->Error);
    }
    $stat=0;
   }
  } else {
   $this->ora_no_next_fetch=false;
   for($ix=0;$ixQuery_ID);$ix++) {
    $col=strtolower(ora_columnname($this->Query_ID,$ix));
    $value=ora_getcolumn($this->Query_ID,$ix);
    $this->Record[ "$col" ] = $value;
    $this->Record[ $ix ] = $value;
    #DBG echo”[$col]: $value
n”;
   }
   $stat=1;
  }

return $stat;
}

## seek() works only for $pos – 1 and $pos
## Perhaps I make a own implementation, but my
## opinion is, that this should be done by PHP3
function seek($pos) {
  if ($this->Row – 1 == $pos) {
   $this->ora_no_next_fetch=true;
  } elseif ($this->Row == $pos ) {
   ## do nothing
  } else {
   $this->halt(”Invalid seek(): Position is cannot be handled by API.
”.
   ”Only a seek to the last element is allowed in this version
”.
   ”Difference too big. Wanted: $pos Current pos: $this->Row”);
  }
  if ($this->Debug) echo “
Debug: seek = $pos
”;
  $this->Row=$pos;
}

function unlock() {
return ora_do($this->Link_ID, “commit”);
}

// Important note: This function dosn’t work with Oracle-Database-Links!
// You are free to get a better method. :)
function metadata($table,$full=false) {
  $count = 0;
  $id = 0;
  $res = array();

  /*
  * Due to compatibility problems with Table we changed the behavior
  * of metadata();
  * depending on $full, metadata returns the following values:
  *
  * – full is false (default):
  * $result[]:
  * [0]["table"] table name
  * [0]["name"] field name
  * [0]["type"] field type
  * [0]["len"] field length
  * [0]["flags"] field flags (”NOT NULL”, “INDEX”)
  * [0]["format"] precision and scale of number (eg. “10,2″) or empty
  * [0]["index"] name of index (if has one)
  * [0]["chars"] number of chars (if any char-type)
  *
  * – full is true
  * $result[]:
  * ["num_fields"] number of metadata records
  * [0]["table"] table name
  * [0]["name"] field name
  * [0]["type"] field type
  * [0]["len"] field length
  * [0]["flags"] field flags (”NOT NULL”, “INDEX”)
  * [0]["format"] precision and scale of number (eg. “10,2″) or empty
  * [0]["index"] name of index (if has one)
  * [0]["chars"] number of chars (if any char-type)
  * [0]["php_type"] the correspondig PHP-type
  * [0]["php_subtype"] the subtype of PHP-type
  * ["meta"][field name] index of field named “field name”
  * This could used, if you have the name, but no index-num – very fast
  * Test: if (isset($result['meta']['myfield'])) {} …
  */

$this->connect();

  ## This is a RIGHT OUTER JOIN: “(+)”, if you want to see, what
  ## this query results try the following:
  ## $table = new Table; $db = new my_DB_Sql; # you have to make
  ## # your own class
  ## $table->show_results($db->query(see query vvvvvv))
  ##
  $this->query(”SELECT T.table_name,T.column_name,T.data_type,”.
  ”T.data_length,T.data_precision,T.data_scale,T.nullable,”.
  ”T.char_col_decl_length,I.index_name”.
  ” FROM ALL_TAB_COLUMNS T,ALL_IND_COLUMNS I”.
  ” WHERE T.column_name=I.column_name (+)”.
  ” AND T.table_name=I.table_name (+)”.
  ” AND T.table_name=UPPER(’$table’) ORDER BY T.column_id”);

  $i=0;
  while ($this->next_record()) {
   $res[$i]["table"] = $this->Record[table_name];
   $res[$i]["name"] = strtolower($this->Record[column_name]);
   $res[$i]["type"] = $this->Record[data_type];
   $res[$i]["len"] = $this->Record[data_length];
   if ($this->Record[index_name]) $res[$i]["flags"] = “INDEX “;
   $res[$i]["flags"] .= ( $this->Record[nullable] == ‘N’) ? ” : ‘NOT NULL’;
   $res[$i]["format"]= (int)$this->Record[data_precision].”,”.
   (int)$this->Record[data_scale];
   if (”0,0″==$res[$i]["format"]) $res[$i]["format"]=”;
   $res[$i]["index"] = $this->Record[index_name];
   $res[$i]["chars"] = $this->Record[char_col_decl_length];
   if ($full) {
    $j=$res[$i]["name"];
    $res["meta"][$j] = $i;
    $res["meta"][strtoupper($j)] = $i;
    switch ($res[$i]["type"]) {
     case “VARCHAR2″ :
     case “VARCHAR” :
     case “CHAR” :
      $res["php_type"]=”string”;
      $res["php_subtype"]=”";
      break;
     case “DATE” :
      $res["php_type"]=”string”;
      $res["php_subtype"]=”date”;
      break;
     case “BLOB” :
     case “CLOB” :
     case “BFILE” :
     case “RAW” :
     case “LONG” :
     case “LONG RAW” :
      $res["php_type"]=”string”;
      $res["php_subtype"]=”blob”;
      break;
     case “NUMBER” :
      if ($res[$i]["format"]) {
       $res["php_type"]=”double”;
       $res["php_subtype"]=”";
      } else {
       $res["php_type"]=”int”;
       $res["php_subtype"]=”";
      }
      break;
     default :
      $this->halt(”metadata(): Type is not a valid value: ‘$res[$i][type]‘”);
      break;
    }
   }
   if ($full) $res["meta"][$res[$i]["name"]] = $i;
   $i++;
  }
  if ($full) $res["num_fields"]=$i;
  # $this->disconnect();
  return $res;
}

## THIS FUNCTION IS UNSTESTED!
function affected_rows() {
if ($this->Debug) echo “
Debug: affected_rows=”. ora_numrows($this->Query_ID).”
”;
return ora_numrows($this->Query_ID);
}

## Known bugs: It will not work for SELECT DISTINCT and any
## other constructs which are depending on the resulting rows.
## So you *really need* to check every query you make, if it
## will work with it!
##
## Also, for a qualified replacement you need to parse the
## selection, cause this will fail: “SELECT id, from FROM …”).
## “from” is – as far as I know a keyword in Oracle, so it can
## only be used in this way. But you have been warned.
function num_rows() {
$curs=ora_open($this->Link_ID);

  ## this is the important part and it is also the HACK!
  if (eregi(”^[[:space:]]*SELECT[[:space:]]”,$this->lastQuery) )
  {

   # This works for all?? cases, including SELECT DISTINCT case.
   # We just make select count(*) from original sql expression
   # and remove ORDER BY (if any) for speed
   # I like regular expressions too ;-)))
   $q = sprintf(”SELECT COUNT(*) FROM (%s)”,
   @eregi_Replace(”ORDER[[:space:]]+BY[^)]*()*)”, “\1″,
   $this->lastQuery)
   );

   # works also for subselects:
   # if (eregi(”[[:space:]]+FROM([[:space:]]+.*[[:space:]]+FROM)”,$this->lastQuery,$r))
   # $areplace=$r[1];
   # $q=eregi_Replace(”^[[:space:]]*SELECT[[:space:]]+”.
   # “.*[[:space:]]+FROM”,
   # “SELECT COUNT(*) FROM$areplace”,
   # $this->lastQuery);

if ($this->Debug) echo “
Debug: num_rows: $q
”;

   ORA_parse($curs,$q);
   ORA_exec($curs);
   ORA_fetch($curs);
   $result = ORA_getcolumn($curs,0);
   ORA_close($curs);
   if ($this->Debug)
   {
    echo “
Debug: ID “.$this->QueryID.
    ” num_rows=”. $result .”
”;
   }
   return $result;
  }
  else
  {
   $this->halt(”Last Query was not a SELECT: $this->lastQuery”);
  }
}

function num_fields() {
if ($this->Debug) echo “
Debug: num_fields=”. ora_numcols($this->Query_ID) . “
”;
return ora_numcols($this->Query_ID);
}

function nf() {
return $this->num_rows();
}

function np() {
print $this->num_rows();
}

function f($Name) {
return $this->Record[$Name];
}

function p($Name) {
print $this->Record[$Name];
}

/* public: sequence number */
function nextid($seq_name)
{
$this->connect();

/* Independent Query_ID */
$Query_ID = ora_open($this->Link_ID);

  if(!@ora_parse($Query_ID,”SELECT $seq_name.NEXTVAL FROM DUAL”))
  {
   // There is no such sequence yet, then create it
   if(!@ora_parse($Query_ID,”CREATE SEQUENCE $seq_name”)
   ||
   !@ora_exec($Query_ID)
   )
   {
    $this->halt(”
nextid() function – unable to create sequence”);
    return 0;
   }
   @ora_parse($Query_ID,”SELECT $seq_name.NEXTVAL FROM DUAL”);
  }
  if (!@ora_exec($Query_ID)) {
   $this->halt(”
ora_exec() failed:
nextID function”);
  }
  if (@ora_fetch($Query_ID) ) {
   $next_id = ora_getcolumn($Query_ID, 0);
  }
  else {
   $next_id = 0;
  }
  if ( $Query_ID > 0 ) {
   ora_close($Query_ID);
  }

return $next_id;
}

/* private: error handling */
function halt($msg) {
if ($this->Halt_On_Error == “no”)
return;

$this->haltmsg($msg);

if ($this->Halt_On_Error != “report”)
die(”Session halted.”);
}

function haltmsg($msg) {
  printf(”
Database error: %s
n”, $msg);
  printf(”Oracle Error: %s (%s)
n”,
  $this->Errno,
  $this->Error);
}

  $res = 1;
  if(!@Ora_Commit($this->Link_ID))
  {
   Ora_CommitOn($this->Link_ID);
   $this->halt(”Unable to finish transaction”);
   $res = 0;
  }
  // Enable autocommit again
  Ora_CommitOn($this->Link_ID);

  if ($this->Debug)
  {
   print “END TRANSACTION : $res
”;
  }
  return $res;
}
}
?>

Make Google Sitemap – PHP

rueben — Wed, 05 Mar 2008 03:20:29 +0000

this a simple Making google Sitemap the php function

require_once(”opendb.php”);

function makeSitemap($fname){
$str = “”;
$str .= “\n”;
$str .= “http://www.sitemaps.org/schemas/sitemap/0.9\” xmlns:xsi=\”http://www.w3.org/2001/XMLSchema-instance\” xsi:schemaLocation=\”http://www.google.com/schemas/sitemap/0.84 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd\”>\n“;
$str .= “”;
$str .= “http://www.easemarry.com/”;
$str .= “”.date(’Y-m-d\TH:m+08:00′).””;
$str .= “daily”;
$str .= “1.00”;
$str .= “\r\n”;
$str .= “”;

global $opendb;
$sql=”SELECT url FROM table”;
$query =$opendb->get_results($sql);
  if (count($query)>=1){
     foreach ($query as $list){
    $make_time=date(’Y-m-d\TH:m+08:00′);
     $str .= “”;
     $str .= “”.$list->url.””;
    $str .= “$make_time”;
     $str .= “daily”;
     $str .= “0.50”;
     $str .= “\r\n”;
   }
  $str.= “”;
  $fp = @fopen($fname, “w”);
  @fwrite($fp,$str);
  @fclose($fp);
}
}

$fname=’../sitemap.xml’;
makeSitemap($fname);
?>

RSS Class – PHP

rueben — Wed, 05 Mar 2008 01:28:42 +0000

This is a generation RSS document PHP class

if (defined(’_CLASS_RSS_PHP’)) return;
define(’_CLASS_RSS_PHP’,1);
/**
* Class name: RSS
* $rss = new RSS(”Blog”,”http://www.easemarry.com/”,”EaseMarry’s Blog”);
* $rss->AddItem(”RSS Class”,”http://www.easemarry.com”,”description”,date());
* $rss->AddItem(…);
* $rss->SaveToFile(”../rss/index.xml”);
*/

class RSS {
var $rss_ver = “2.0″;
var $channel_title = ”;
var $channel_link = ”;
var $channel_description = ”;
var $language = ‘en-us’;
var $copyright = ‘easemarr.com’;
var $webMaster = ‘web@easemarry.com’;
var $pubDate = ”;
var $generator = ‘Easemarry.com’;
var $content = ”;
var $items = array();

function RSS($title, $link, $description) {
  date_default_timezone_set(’GMT’);
  $this->channel_title = $title;
  $this->channel_link = $link;
  $this->channel_description = $description;
  $this->pubDate = Date(DATE_RFC822);
}

function AddItem($title, $link, $description ,$pubDate) {
  $this->items[] = array(’titile’ => $title ,
  ’link’ => $link,
  ’description’ => $description,
  ’pubDate’ => $pubDate);
}

  // start items
  if (count($this->items)>=1){
   foreach ($this->items as $key=>$value){
    $s .= “\n”;
    $s .= “”.$value['titile'].”\n”;
    $s .= “”.$value['link'].”\n”;
    $s .= “”.$value['description'].”\n”;
    $s .= “”.$value['pubDate'].”\n”;
    $s .= “”.$value['link'].””;
    $s .= “\n”;
   }
  }
  // close channel
  $s .= “\n”;
  $this->content = $s;
}

function Show() {
  if (empty($this->content)) $this->BuildRSS();
  header(’Content-type:text/xml’);
  echo($this->content);
}