set_exception_handler

说明

Sets the default exception handler if an exception is not caught within a try/catch block. Execution will stop after the exception_handler is called.

The exception_handler must be defined before calling set_exception_handler(). This function needs to accept one parameter, which will be the exception object that was thrown. exception_handler ( object exception )

参数

返回值

Returns the previously defined exception handler, or FALSE on error. If no previous handler was defined, an empty string is returned.

例

例子 1. set_exception_handler() example <?php function exception_handler($exception) {   echo "Uncaught exception: " , $exception->getMessage(), "\n"; } set_exception_handler('exception_handler'); throw new Exception('Uncaught Exception'); echo "Not Executed\n"; ?>

参见

restore_exception_handler(), restore_error_handler(), error_reporting(), 有关 callback 类型的信息, 和 PHP 5 Exceptions.