Debugging PHPwith

XdebugInside of

Eclipse PDT 2.0

Bastian Federpapaya Software GmbH

IPC 200918.11.2009

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 GroupZend 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] ;; 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 php_value xdebug.remote_host 127.0.0.1 ;if debugging on remote server, put client IP here

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"

#-------------------------------# # xDebug section # #-------------------------------#

php_value xdebug.remote_enable 1 php_value xdebug.remote_handler 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

Preconditions

▹ JIT configured

▹ Breakpoint set or 'Break at first line' active Debug cronjobs, PHPUnit tests, etc.

#> export XDEBUG_CONFIG=“idekey=ECLIPSE_DBGP“↵

#> php myScript.php ↵

#> export XDEBUG_CONFIG=““ ↵

Debugging made easy!

Firefox Add-on „Xdebug Helper“

DEMO

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