get_exception_handler

(PHP 8 >= 8.5.0)

get_exception_handlerGets the user-defined exception handler function

Description

get_exception_handler(): ?callable

Returns the current exception handler function, if any.

Liste de paramètres

Cette fonction ne contient aucun paramètre.

Valeurs de retour

Returns the currently defined exception handler. If no handler is defined, null is returned.

The returned handler is the exact callable value that was passed to set_exception_handler() to define it.

Exemples

Exemple #1 get_exception_handler() example

<?php

$handler
= function (Throwable $ex) {
echo
"Exception: " . $ex::class . ": " . $ex->getMessage() . "\n";
};

var_dump(get_exception_handler()); // NULL

set_exception_handler($handler);

var_dump(get_exception_handler() === $handler); // bool(true)

?>

Notes

Astuce

Prior to PHP 8.5.0, this functionality can be provided by the following polyfill:

<?php
if (!function_exists('get_exception_handler')) {
function
noop_exception_handler() {
}
function
get_exception_handler(): ?callable {
$handler = set_exception_handler('noop_exception_handler');
restore_exception_handler();
return
$handler;
}
}
?>

Voir aussi

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