This one's a quickie.
Well, it's all about semantics.
- You have to load with "zend_extension". It will not load completely/correctly with "extension". You will get "XDEBUG NOT LOAD AS ZEND EXTENSION".
- zend_extension does not take into account "extension_dir". You must use the full path to XDebug.
- zend_extension does not give any warnings when the extension does not load using zend_extension... At least it doesn't crash the starting of Apache like an incorrect extension path.
- DO NOT USE "zend_extension_ts". This was deprecated as of PHP5.3.
So, how did I get it to work with ZWamp?
zend_extension = "/.sys/php/ext/php_xdebug-2.1.0-5.3-vc9.dll"