STEP INTO DEBUGGING - DrupalCon · INTRODUCING XDEBUG A PHP extension that enables you to step...
Transcript of STEP INTO DEBUGGING - DrupalCon · INTRODUCING XDEBUG A PHP extension that enables you to step...
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STEP INTO
GARY HOCKIN@GeeH
DEBUGGING
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IN THE BEGINNING, THERE WAS VAR_DUMP
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AND IT WAS GOOD
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<?phpdie(var_dump($countries));array (size=239) 0 => object(Application\Entities\Country)[321] private 'code' => string 'ABW' (length=3) private 'name' => string 'Aruba' (length=5) private 'continent' => string 'North America' (length=13) private 'region' => string 'Caribbean' (length=9) private 'surfaceArea' => string '193.00' (length=6) private 'indepYear' => null private 'population' => string '103000' (length=6) private 'lifeExpectancy' => string '78.4' (length=4) ...
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AND IT’S STILL GOOD
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AND IT’S STILL GOOD(SOMETIMES)
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<?phppublic function getDQL() { if ($this->_dql !== null && $this->_state === self::STATE_CLEAN) { echo ‘FIRST IF' . PHP_EOL; return $this->_dql; } switch ($this->_type) { case self::DELETE: echo 'DELETE' . PHP_EOL; $dql = $this->_getDQLForDelete(); break; case self::UPDATE: echo 'UPDATE' . PHP_EOL; $dql = $this->_getDQLForUpdate(); break; case self::SELECT: default: echo 'DEFAULT' . PHP_EOL; $dql = $this->_getDQLForSelect(); break; } $this->_state = self::STATE_CLEAN; $this->_dql = $dql; var_dump($dql); return $dql; }
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INTRODUCING XDEBUG
A PHP extension that enables you to step debug PHP scripts (and much more)
http://xdebug.org
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DERICK RETHANS@derickr
http://www.facesoftheelephpant.com/image/134982910242
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XDEBUG “CLIENT”
XDEBUG “SERVER”
debug “events”
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XDEBUG “CLIENT”
XDEBUG “SERVER”
debug “events”
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XDEBUG “CLIENT”
XDEBUG “SERVER”
debug “events”
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XDEBUG “CLIENT”
XDEBUG “SERVER”
debug “events”
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OTHER IDES ARE AVAILABLE
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INSTALL THE XDEBUG EXTENSION
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OSX
brew install php<version>-xdebug
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LINUX
apt-get install php<version>-xdebug
yum install php<version>-xdebug
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WINDOWS
Download the binaries from:
https://xdebug.org/download.php
(GOOD LUCK)
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$php -v
PHP 5.6.17 (cli) (built: Jan 8 2016 10:27:48) Copyright (c) 1997-2015 The PHP Group Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans
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$php -v
PHP 5.6.17 (cli) (built: Jan 8 2016 10:27:48) Copyright (c) 1997-2015 The PHP Group Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies with Xdebug v2.3.3, Copyright (c) 2002-2015, by Derick Rethans
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$php —-ini
Configuration File (php.ini) Path: /usr/local/etc/php/5.6 Loaded Configuration File: /usr/local/etc/php/5.6/php.ini Scan for additional .ini files in: /usr/local/etc/php/5.6/conf.d Additional .ini files parsed: /usr/local/etc/php/5.6/conf.d/ext-intl.ini, /usr/local/etc/php/5.6/conf.d/ext-xdebug.ini
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$vim /usr/local/etc/php/5.6/conf.d/ext-xdebug.ini
[xdebug] zend_extension="/usr/local/opt/php56-xdebug/xdebug.so" xdebug.remote_enable=on xdebug.remote_connect_back=on
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INSTALL XDEBUG
CHECK PHP CONFIG
UPDATE XDEBUG
brew install php56-xdebug
php -v php —ini
xdebug.remote_enable=on xdebug.remote_connect_back=on
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PLEASE DON’T USE IN PRODUCTION
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Use either a query string parameter OR a cookie
TELL XDEBUG YOU WANT TO DEBUG
XDEBUG_SESSION=PHPSTORM
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Hello?XDEBUG “CLIENT”
XDEBUG “SERVER”
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Hello?
breakpoints
XDEBUG “CLIENT”
XDEBUG “SERVER”
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Hello?
breakpoint!
XDEBUG “CLIENT”
XDEBUG “SERVER”
breakpoints
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Hello?
breakpoint!
step into
XDEBUG “CLIENT”
XDEBUG “SERVER”
breakpoints
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BREAKPOINT?!?!?!
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Please BREAK at this POINT and tell the server what’s going on
BREAKPOINT?!?!?!
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http://www.goldposter.com/86057/
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TELL PHPSTORM TO LISTEN
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ONOFF
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STEP OVER (F8)
Step over the current function/method
Runs the function/method, but doesn’t debug into it
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STEP INTO (F9)
Step into the current function/method
Move to the file the function was declared and steps over that function
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STEP OUT (F9)
Step out of the current function/method
Move to the place that the return value is used
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ADVANCED BREAKPOINTS
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http://www.comingsoon.net/movies/trailers/480825-new-point-break-poster
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VIEW BREAKPOINTS
Misnomer as you can add/remove/edit existing breakpoints
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BONUS
https://flic.kr/p/gqhi3N
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CONSOLE
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Allows you to view and manipulate variable values on-the-fly
CONSOLE
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https://flic.kr/p/7ZAdXH
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COMMAND LINE
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EXPORT an XDEBUG_CONFIG value to set IDE key
COMMAND LINE
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$export XDEBUG_CONFIG="idekey=PhpStorm"
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Don’t forget to UNSET the XDEBUG_CONFIG value to avoid confusion
COMMAND LINE
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$unset XDEBUG_CONFIG
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ANY QUESTIONS?
GARY HOCKIN@GeeH
https://joind.in/talk/e43ec
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SUPER DUPER BONUS
https://twitter.com/jmikola/status/695659879244177408
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FRAMEWORKS
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ANY QUESTIONS?
GARY HOCKIN@GeeH
https://joind.in/talk/e43ec