get_exception_handler
PHP function
Edit on GitHub ✎
(PHP 8 >= 8.5.0)
Gets the user-defined exception handler function
Description
get_exception_handler(): callable|null
Returns the current exception handler function, if any.
Parameters Parameters
Return Values
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.
Examples
get_exception_handler() example
php
<?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
Tip
Prior to PHP 8.5.0, this functionality can be provided by the following polyfill:
php
<?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;
}
}
?>