restore_exception_handler

    (PHP 5, PHP 7, PHP 8)

    restore_exception_handler — Restores the previously defined exception handler function

    Опис

    restore_exception_handler(): true

    Used after changing the exception handler function using set_exception_handler(), to revert to the previous exception handler (which could be the built-in or a user defined function).

    Параметри

    У цієї функції немає параметрів.

    Значення, що повертаються

    Завжди повертає true.

    Приклади

    Приклад #1 restore_exception_handler() example

    <?php
    function exception_handler_1(Exception $e)
    {
    echo     '[' . __FUNCTION__ . '] ' . $e->getMessage();
    }

    function     exception_handler_2(Exception $e)
    {
    echo     '[' . __FUNCTION__ . '] ' . $e->getMessage();
    }

    set_exception_handler('exception_handler_1');
    set_exception_handler('exception_handler_2');

    restore_exception_handler();

    throw new     Exception('This triggers the first exception handler...');
    ?>

    Поданий вище приклад виведе:

    [exception_handler_1] This triggers the first exception handler...

    Прогляньте також

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    User Contributed Notes 1 note

    up
    13
    rl7 at shinyblue dot net
    10 years ago
    Note that this does not work within an exception handler.

    e.g.

    <?php

    function handler1(Exception $e) {
    echo     "handler1\n";
    restore_exception_handler();
    throw     $e;
    }
    function     handler2(Exception $e) {
    echo     "handler2\n";
    }

    set_exception_handler( 'handler2' );
    set_exception_handler( 'handler1' );

    throw new     Exception( 'might expect to see handler1, handler2' );

    /* Outputs:
    handler1
    PHP Fatal error: Uncaught exception 'Exception' with message 'might expect to see handler1, handler2' in /tmp/demo.php:15
    Stack trace:
    #0 {main}
    thrown in /tmp/demo.php on line 15
    */

    ?>
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