Xdebug for Magento 2

1. install Xdebug for php
2. Xdebug deepens debugging PHP apps and websites to a level you can’t receive from the manual process of using code level var_dump().
   

   Setup

   To install Xdebug for PHP7 on Ubuntu you will need to do so manually. Ubuntu 15 and lower will not come with a package for PHP7 or its xDebug counterpart.

   First, be sure you are using PHP 7 already by checking your version.

   php -v

   Should give you something like:

   PHP 7.0.0-2+deb.sury.org~trusty+1 (cli) ( NTS )
   Copyright (c) 1997-2015 The PHP Group
   ...

   In my case I’m using the Larval Homestead PHP 7 branch with Vagrant and the VirtualBox provider. So, I have PHP 7 already installed and working with Nginx.

   Get your php.ini

   Next output your php.ini information into a file or place you can get to the information from. I like to save mine to a file called php-info.txt.

   sudo php -i > ~/php-info.txt

   Use the Xdebug Wizard

   Send the text file information into the wizard at Xdebug Wizard. Then follow the instructions the wizard supplies.

   Also, if you are using OSX you may need to run brew install autoconf.

   Example

   The instructions should look something like:

   1. Download xdebug-2.4.0.tgz (I like to use wget -O ~/downlaods/xdebug-2.4.0.tgz http://xdebug.org/files/xdebug-2.4.0.tgz on Ubuntu)
   2. Unpack the downloaded file with tar -xvzf xdebug-2.4.0.tgz
   3. Run: cd xdebug-2.4.0
   4. Run: phpize (See the Xdebug FAQ if you don’t have phpize.)

   As part of its output it should be like:

   Configuring for:
   ...
   Zend Module Api No:      20151012
   Zend Extension Api No:   320151012

   If it does not, you are using the wrong phpize. Please follow this FAQ entry and skip the next step.

   1. Run: ./configure
   2. Run: make
   3. Run: cp modules/xdebug.so /usr/lib/php/20151012
   4. Edit /etc/php/7.0/cli/php.ini and fpm and add the line

   zend_extension = /usr/lib/php/20151012/xdebug.so

   Enable Remote Xdebug

   To use Xdebug remote debugging on a host computer you need to enable remote debugging on the guest server. In my case the guest is the Vagrant Homestead VM.

   In the guest php.ini file add:

   zend_extension = /usr/lib/php/20151012/xdebug.so
   xdebug.remote_enable = 1
   #xdebug.remote_connect_back=1
   xdebug.remote_port = 9000
   xdebug.scream=0
   xdebug.show_local_vars=1
   xdebug.idekey=PHPSTORM
   xdebug.remote_autostart = 1
   xdebug.remote_host=192.168.7.3

   Since I use PhpStorm for Debugging I set my Xdebug key to PHPSTORM. In the browser the Xdebug and PhpStorm will look for a cookie calledXDEBUG_SESSION with the value PHPSTORM. To set this cookie I use the Chrome Browser extension Xdebug helper.

 

2. configuration for phpstorm

 

PHP Storm lovers

With PhpStorm, it is even easier to set up everything since it has native Xdebug integration.

1. Open Magento 2 project

1. Open up a project
2. Go to Preferences
3. Search for servers in the popup’s upper left search field
4. Click on Servers under PHP, as shown on the screenshot above

2. Set it up

When you are done with the previous step, you will get a window on the right, which will look like this (with values already set):

I uncheck map project *****

So, this is step by step what you need to do: