xdebug

php -v command output includes information about installed XDebug version: $ php -v PHP 5.6.13-1+deb.sury.org~trusty+3 (cli) Copyright (c) 1997-2015 The PHP Group Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies with Xdebug v2.3.2, Copyright (c) 2002-2015, by Derick Rethans or $ php -v | grep … Read more