XDebug is a useful tool for debugging PHP applications, but it uses extra memory and CPU for every request, so is disabled by default.

To enable XDebug, do the following in config.yml:

• Change php_xdebug_default_enable (and, optionally, php_xdebug_coverage_enable to get code coverage reports) to 1
• Make sure xdebug is in the list of installed_extras

If you don't need to use XDebug, you can comment it out or remove it from installed_extras before you vagrant up Drupal VM.

PHPStorm and XDebug with Drupal VM¶

To use XDebug with PHPStorm, change the php_xdebug_idekey variable as shown below in config.yml, and then run vagrant provision to reconfigure the VM:

php_xdebug_idekey: PHPSTORM

Sublime Text and XDebug with Drupal VM¶

To use XDebug with Sublime Text, change the php_xdebug_idekey variable as shown below in config.yml, and then run vagrant provision to reconfigure the VM:

php_xdebug_idekey: sublime.xdebug

NetBeans and XDebug with Drupal VM¶

To use XDebug with NetBeans, change the php_xdebug_idekey variable as shown below in config.yml, and then run vagrant provision to reconfigure the VM.

php_xdebug_idekey: netbeans-xdebug