set_exception_handler Sets a user-defined exception handler function &reftitle.description; callablenullset_exception_handler callablenullcallback Sets the default exception handler if an exception is not caught within a try/catch block. Execution will stop after the callback is called. &reftitle.parameters; callback The function to be called when an uncaught exception occurs. This handler function needs to accept one parameter, which will be the Throwable object that was thrown. Both Error and Exception implement the Throwable interface. This is the handler signature: voidhandler Throwableex &null; may be passed instead, to reset this handler to its default state. &reftitle.returnvalues; Returns the previously defined exception handler, or &null; on error. If no previous handler was defined, &null; is also returned. &reftitle.examples; getMessage(), "\n"; } set_exception_handler('exception_handler'); throw new Exception('Uncaught Exception'); echo "Not Executed\n"; ?> ]]> &reftitle.seealso; get_exception_handler restore_exception_handler restore_error_handler error_reporting Exceptions