Triggering Your Own Errors

The function trigger_error()can be used to trigger your own errors. Errors created in this way will be handled in the same way as regular PHP errors.

The function requires an error message, and can optionally be given an error type. The error type needs to be one of E_USER_ERROR, E_USER_WARNING, or E_USER_NOTICE. If you do not specify a type, the default is E_USER_NOTICE.

You use trigger_error() as shown in the following:

					
trigger_error("This computer will self destruct in 15 seconds",
   E_USER_WARNING);

				

(Note that this function was added at PHP version 4.0.1.)