Debugging PHP with xDebug inside of Eclipse PDT 2.1

Debugging PHP with Xdebug Inside of Eclipse PDT 2.0 Bastian Feder IPC 2009 papaya Software GmbH 18.11.2009

Me, myself & I  Application developer  PHP since 2001  @papaya since 01.2008  OpenSource addict ▹ fluentDom.org ▹ CaricaCacheGrind

Who are you?

Derrick Rethans „ Xdebug ̶ PHP developer's Swiss-Army Knife “

What is this xDebug ev'ryone's talking about?  Debugging for PHP by Derick Rethans (http://www.xdebug.org)  Provides ▹ profiling, tracing, code coverage, … ▹ PHP error reporting enhancements  Cross platform

What's up for this talk?  Installation  Configuration  Techniques  Eclipse PDT  Troubleshooting

Obtaining Xdebug - Linux #> sudo apt-get install php5-xdebug ↵ #> php -v ↵ PHP 5.2.-3ubuntu4.2 with Suhoshin-Patch 0.9.6.2 (cli) Copyright © 1997-2008 The PHP Group Zend Engine v2.2.0, Copyright © 2002-2008 Zend Technologies with Xdebug v2.0.5, Copyright © 2002-2008, by Derick Rethans  Easiest way on Linux systems  Basic configuration

Obtaining Xdebug - PECL #> sudo pecl install xdebug ↵  Still configurations to be done ▹ Add: zend_extension=“/usr/local/php/modules/xdebug.so to php.ini  Ignore notes about to add „extension=xdebug.so“ → causes problems

Obtaining Xdebug – precompiled Modules  ActiveState ▹ Komodo IDE Xdebug binaries (http://downloads.activestate.com/Komodo/releases/5.2.2/remotedebugging)

Configuration  Add to php.ini [XDebug] ;; Only Zend OR (!) XDebug zend_extension="/usr/local/php/modules/xdebug.so" xdebug.remote_enable=true xdebug.remote_host=127.0.0.1 ;if debugging on remote server, put client IP here xdebug.remote_port=9000 xdebug.remote_handler=dbgp ;; profiler xdebug.profiler_enable=Off xdebug.profiler_enable_trigger=On xdebug.profiler_output_dir=/data_lokal/temp/xdebug/profiling

Configuration (II)  .htaccess – file settings #-------------------------------# # xDebug section # #-------------------------------# php_value xdebug.remote_enable 1 php_value xdebug.remote_handler bdgp dbgp php_value xdebug.remote_host 127.0.0.1 ;if debugging on remote server, put client IP here php_value xdebug.allowed_clients <client IP address> php_value xdebug.remote_port 9000 # profiler php_value xdebug.profiler_enable_trigger 1 php_value xdebug.profiler_enable 0 php_value xdebug.profiler_output_dir "/data_lokal/temp/xdebug/profiling"

Debugging techniques  Local debugging

Debugging techniques (II)  Remote debugging

Debugging techniques (III)  Multi-User Debugging ▹ Only possible using Remote Debugging ▹ DBGp Proxy necessary

Eclipse PDT

Eclipse PDT  Debug Perspective  Debug Views  Support for ▹ Breakpoints ▹ Conditional Breakpoints ▹ Live view / edit of variable content ▹ All debugging techniques

Debugging perspective

Preferences – Basic setup

General settings  Debug Port  Multisession  DBGp Proxy settings

Preferences – Basic setup

Preferences – PHP servers  Remote debugging  Mapping between IDE and Xdebug

Configuration for remote debugging

Start a remote debugging session

Start a local debugging

Configure „autostart“ options  Accept JIT ▹ Localhost ▹ any ▹ Prompt  Disable Multisession currently a Bug in PDT

Debug CLI scripts #> export XDEBUG_CONFIG=“idekey=ECLIPSE_DBGP“↵ #> php myScript.php ↵ #> export XDEBUG_CONFIG=““ ↵  Preconditions ▹JIT configured ▹ Breakpoint set or 'Break at first line' active  Debug cronjobs, PHPUnit tests, etc.

Debugging made easy!  Firefox Add-on „Xdebug Helper“

Troubleshooting  Monitor TCP/IP ▹ Withershark / ethereal ▹ TCP/IP Monitor

TCP/IP Monitor (remote debugging only)

Questions? Further questions? Ask me at: lapistano@php.net

Contact'n Slides  Slides ▹ SlideShare: http://slideshare.com/lapistano  Contact ▹ Blog: http://bastian-feder.de ▹ Email: php@bastian-feder.de  Rate the talk @ http://joind.in/talk/view/1066

References  xDebug (http://www.xdebug.org) ▹ Komodo precompilations (http://downloads.activestate.com/Komodo/releases/5.2.2/remotedebugging) ▹ DBGp Proxy (http://derickrethans.nl/debugging_with_multiple_users.php)  Eclipse PDT (http://www.eclipse.org/pdt)  Xdebug-Helper (https://addons.mozilla.org/en-US/firefox/addon/3960 )

License  This set of slides and the source code included in the download package is licensed under the Creative Commons Attribution- Noncommercial-Share Alike 2.0 Generic License http://creativecommons.org/licenses/by-nc-sa/2.0/deed.en

Debugging PHP with xDebug inside of Eclipse PDT 2.1

by Bastian Feder on Nov 18, 2009

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