Debugging in PHP

Micah Wood @wpscholar

http://wpscholar.com/wcavl2015

Identify the Issue

Steps to Reproduce

Expected Results

Actual Results

Workarounds

Error Messages

Environmental Info

Duplicate the Issue

Isolate the Issue

DetermineType of Issue

DetermineSource of Issue

Debugging

http://xdebug.org/wizard.php

var_dump()

Better var_dump()

Error

Better Error

https://www.jetbrains.com/phpstorm/download/

Setup Bookmarklets

https://www.jetbrains.com/phpstorm/marklets/

Listen for Debug Connections

Pause Code at Breakpoints

Step Through Code Line-by-Line

View Variables in Scope

Watch Variables & Functions

Navigate the Call Stack

https://github.com/Varying-Vagrant-Vagrants/VVV

Enable / Disable Xdebugxdebug_on

xdebug_off

Code Profiling

Fix the Issue

Test the Issue

Questions?

Micah Wood @wpscholar

http://wpscholar.com/wcavl2015