PHP: Hypertext Preprocessor (original) (raw)

get_exception_handler

(PHP 8 >= 8.5.0)

get_exception_handler — Gets the user-defined exception handler function

Description

Returns the current exception handler function, if any.

Parameters

This function has no parameters.

Return Values

Returns the currently defined exception handler. If no handler is defined, [null](reserved.constants.php#constant.null) is returned.

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

Examples

Example #1 get_exception_handler() example

`<?php

$handler

= function (Throwable $ex) {
echo "Exception: " . ex::class.":".ex::class . ": " . ex::class.":".ex->getMessage() . "\n";
};var_dump(get_exception_handler()); // NULLset_exception_handler($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 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; } } ?>

See Also

• set_exception_handler() - Sets a user-defined exception handler function
• restore_exception_handler() - Restores the previously defined exception handler function
• restore_error_handler() - Restores the previous error handler function
• error_reporting() - Sets which PHP errors are reported
• Exceptions

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