Online PHP editor | output for 6sLa4

@ 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 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: 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>" } }
Output for 8.3.0 - 8.3.30: 1object(Closure)#1 (1) { ["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>" } }
Output for 8.1.34, 8.2.0 - 8.2.30: 1object(Closure)#1 (1) { ["parameter"]=> array(3) { ["$json"]=> string(10) "<required>" ["$depth"]=> string(10) "<optional>" ["$flags"]=> string(10) "<optional>" } } Fatal error: Uncaught Error: Call to undefined function json_validate() in /in/6sLa4:27 Stack trace: #0 {main} thrown in /in/6sLa4 on line 27
Process exited with code 255.

preferences:dark modelive previewkey bindings