3v4l.org

run code in 300+ PHP versions simultaneously

@ 2025-09-03T11:16:49Z

<?php
        $json = '{"1": "a"}';

        $jsonValidate = function (string $json, int $depth = 512, int $flags = 0) {
            if (function_exists('json_validate')) {
                return json_validate($json, $depth, $flags);
            }
            $maxDepth = 0x7fffffff;
            if (0 !== $flags && \defined('JSON_INVALID_UTF8_IGNORE') && \JSON_INVALID_UTF8_IGNORE !== $flags) {
                throw new \ValueError('json_validate(): Argument #3 ($flags) must be a valid flag (allowed flags: JSON_INVALID_UTF8_IGNORE)');
            }
            if ($depth <= 0) {
                throw new \ValueError('json_validate(): Argument #2 ($depth) must be greater than 0');
            }
            if ($depth > $maxDepth) {
                throw new \ValueError(sprintf('json_validate(): Argument #2 ($depth) must be less than %d', $maxDepth));
            }
            json_decode($json, true, $depth, $flags);
            return \JSON_ERROR_NONE === json_last_error();
        };
        
        echo (int) $jsonValidate($json);
        
        var_dump($jsonValidate(...));
        
        // error when function not exists
        var_dump(json_validate(...));

Output for git.master_jit, git.master: 1object(Closure)#1 (4) { ["name"]=> string(21) "{closure:/in/6sLa4:4}" ["file"]=> string(9) "/in/6sLa4" ["line"]=> int(4) ["parameter"]=> array(3) { ["$json"]=> string(10) "<required>" ["$depth"]=> string(10) "<optional>" ["$flags"]=> string(10) "<optional>" } } object(Closure)#2 (2) { ["function"]=> string(13) "json_validate" ["parameter"]=> array(3) { ["$json"]=> string(10) "<required>" ["$depth"]=> string(10) "<optional>" ["$flags"]=> string(10) "<optional>" } }

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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

preferences:dark modelive previewkey bindings

37.15 ms | 407 KiB | 5 Q