XDebug on Windows

XDebug does not work like other extensions for PHP. It must be loaded as a zend extension, and is also incompatible with the Zend Optimizer.

Steps to get XDebug Working

1. Verify that the extension=php_xdebug.dll is disabled, as shown below.

   ;extension=php_win32service.dll
   ;extension=php_win32std.dll
   ;extension=php_xdebug.dll
   ;extension=php_xmlreader.dll
   

2. Add a zend_extension_ts line in the [Zend] section of the php.ini file. This is located at the end of the file normally. Also, you will need to disable the zend optimizer. See the following example.

   [Zend]
   ;zend_extension_ts = "c:\xampp\php\ext\php_dbg.dll"
   zend_extension_ts = "c:\xampp\php\ext\php_xdebug.dll"
   zend_extension_ts = "C:\xampp\php\zendOptimizer\lib\ZendExtensionManager.dll"
   ;zend_extension_manager.optimizer_ts = "C:\xampp\php\zendOptimizer\lib\Optimizer"
   zend_optimizer.enable_loader = 0
   zend_optimizer.optimization_level=15
   ;zend_optimizer.license_path =
   

The two key lines are zend_extension_ts = [...]\ext\php_xdebug.dll and the line ;zend_extension_manager.optimizer_ts...