Remote Debugging

Version 3 of PHP included a remote debugger. The purpose of this was to send detailed information about errors and events while your code executed to a port that could be monitored.

This functionality is not available in PHP version 4 without purchasing the Zend IDE.

If you are still using PHP 3 and have a very troublesome bug that you cannot track down any other way, you might want to look up the PHP configuration directive—enable-debugger and the php.ini settings debugger.host, debugger.port, and debugger.enabled.

While enabled, the remote debugger will dump hundreds of lines of information to tell you exactly what is happening in your running scripts.