get_exception_handler

(PHP 8 >= 8.5.0)

get_exception_handlerGets the user-defined exception handler function

Descripción

get_exception_handler(): ?callable

Returns the current exception handler function, if any.

Parámetros

Esta función no tiene parámetros.

Valores devueltos

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.

Ejemplos

Ejemplo #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)

?>

Notas

Sugerencia

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;
}
}
?>

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