Installing Xdebug is easy For Windows: Download the latest Xdebug binary from http://xdebug.org Extract the DLL and put it into your PHP directory Add the following line to your php.ini zend_extension_ts="c:/your/php/path/xdebugXXX.dll" For *nix: $ pear install pecl/xdbug-beta Add the following line to your php.ini zend_extension="/your/path/to/modules/xdebug.so"