PHP Manual
后退前进

set_exception_handler

(PHP 5)

set_exception_handler --  Sets a user-defined exception handler function

说明

string set_exception_handler ( callback exception_handler )

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 )

exception

Name of function to be called when an uncaught exception occurs.

参数

exception_handler

Name of function to be called when an uncaught exception occurs.

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.

后退起点前进
set_error_handler上一级trigger_error