## Example

`

     bool trigger_error ( string $error_msg [, int $error_type = E_USER_NOTICE ] )

`

## Description

Used to trigger a user error condition, it can be used by in conjunction with the built-in error handler, or with a user defined function that has been set as the new error handler (set_error_handler()). This function is useful when you need to generate a particular response to an exception at runtime.

## Return Values

This function returns FALSE if wrong error_type is specified, TRUE otherwise.