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Last updated: Fri, 11 Apr 2008

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Debugging in PHP

About debugging in PHP

PHP does not have an internal debugging facility. You can use one of the external debuggers though. The » Zend IDE includes a debugger, and there are also some free debugger extensions like DBG at » http://dd.cron.ru/dbg/, the » Advanced PHP Debugger (APD) or » Xdebug.



Configure options> <Error Reporting
Last updated: Fri, 11 Apr 2008
 
add a note add a note User Contributed Notes
Debugging in PHP
Juan Rivera
22-Mar-2008 07:08
Here is another PHP IDE that supports both DBG and XDebug:

http://www.jcxsoftware.com/vs.php

You can also debug JavaScript and Php within the same debugger session.
ricardo at sismeiro dot com
04-Oct-2007 11:35
class_blackbox.php

http://sismeiro.com/php/class_blackbox.phps

index.php

<?php
 
 
require_once('class_blackbox.php');
 
 
$debugger=new blackbox();
 
 
$t=1;
 
$z=11/$c;
 
 
$ff='asd';
 
 
$d=(33*$z)+$x;
 
  echo
"<pre>";

 
print_r($debugger->data);
 
?>
online _ use _ only == hotmail.com
16-Mar-2006 12:41
I still find that printing out variable values at problem points in the code is one of the easiest ways for me to debug.  If you're interested in knowing the full contents of an object/array/scalar, then use

var_dump($var).
tulpe at atomar dot de
07-Feb-2003 04:09
Tired of manualy printing out your variables and arrays for debugging?

Take a look at my debuglib at:

http://www.atomar.de/public/code/debuglib/debuglib.demo.php

Happy debugging!

Thomas Schüßler
joe_fitchnospam at hotmail dot com
17-Dec-2002 09:15
I've tried many debuggers and PHP IDEs including Zend IDE, Komodo, PHPEdit, PHPEd and Maguma Studio.
 After all I'm sure that the best one debugger is dbg. It supports breakpoints even conditional ones,  all kind of steps throu php code, watch etc, so it's a fully functional debugger indeed and profiler too. Fortunately, it's an open-source product as PHP itself. Unfortunately, it does not contain any front-end, but 3rd party PHP IDEs. Seems, as for an IDE the best one is PHPEd 3.1 (http://www.phped.com), former PHP IDE from Ergin Soysal.
I was also deeply impressed with IonCube accelerator performance (http://www.ioncube.com). Commercial version of IONCUBE is many times faster than the commercial one from Zend (www.zend.com). Huh ?
Hope this info would help someone to find the better way faster.
23-Aug-2002 08:51
check out this great, cross-platform, my favourite php debugger:
 http://www.activestate.com/Products/Komodo/

it not only allows "debugging PHP programs locally or remotely, including debugging in CGI or other Web Server API environments", but, besides, is a full fledged Perl, PHP, Python, Tcl, and XSLT IDE. based on mozilla.

current version 1.2.9 costs some money ($29.50 non commercial), previous version 1.1 is free (non commercial).
jruskiewicz at techtracker dot com
26-Sep-2000 10:19
[Ed: Note: Python loop control is managed through indentation, so you will need to reindent this errata note]
python remote debug listener...

#!/usr/bin/python
#Used for remote debugging of PHP programs.
from socket import *;

#connect and bind to the port
s = socket(AF_INET, SOCK_STREAM);
s.bind("",7869);
s.listen(5);

#little info to print out
print "PHP Remote Debug Application";

#let us try this thing...
try:
    while 1:
        client, addr = s.accept();
        tmp = client.recv(1024);
        while tmp:
            print tmp, "\n";
            tmp = client.recv(1024);
        client.close();
except:
    s.close();
    print "Exit";

Configure options> <Error Reporting
Last updated: Fri, 11 Apr 2008
 
 
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