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@ 2026-05-06T16:19:41Z

<?php

if (!function_exists('get_error_handler')) {
    function noop_error_handler() {
    }
    function get_error_handler(): ?callable {
        $handler = set_error_handler('noop_error_handler');
        restore_error_handler();
        return $handler;
    }
}

$handler = function (int $errno, string $errstr, ?string $errfile, ?int $errline) {
     echo "Error: " . $errstr . "\n";
};

var_dump(get_error_handler()); // NULL

set_error_handler($handler);

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

$new_handler = function (int $errno, string $errstr, ?string $errfile, ?int $errline) {
     echo "Error: " . $errstr . "\n";
};

var_dump(get_error_handler()); // NULL

set_error_handler($new_handler);

var_dump(get_error_handler() === $new_handler); // bool(true)

Output for rfc.property-hooks: NULL bool(true) object(Closure)#1 (1) { ["parameter"]=> array(4) { ["$errno"]=> string(10) "<required>" ["$errstr"]=> string(10) "<required>" ["$errfile"]=> string(10) "<required>" ["$errline"]=> string(10) "<required>" } } bool(true)
Output for git.master, git.master_jit: NULL bool(true) object(Closure)#1 (4) { ["name"]=> string(22) "{closure:/in/AtMR3:13}" ["file"]=> string(9) "/in/AtMR3" ["line"]=> int(13) ["parameter"]=> array(4) { ["$errno"]=> string(10) "<required>" ["$errstr"]=> string(10) "<required>" ["$errfile"]=> string(10) "<required>" ["$errline"]=> string(10) "<required>" } } bool(true)

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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