Online PHP editor | output for EIUPB

@ 2024-02-07T06:54:38Z

<?php

        $fixtures = [
            // Not valid
            'foo',
            '{foo: bar}',
            "'{'foo': 'bar'}",
            '{...}',

            // Valid
            '"foo"',
            '1',
            '{"foo": "bar"}',
        ];

        foreach ($fixtures as $string) {
            if (json_validate($string)) {
                echo sprintf('YES, >%s< is a valid JSON string', $string).PHP_EOL;
                echo 'decoded: '. var_export(json_decode($string), true).PHP_EOL;
            } else {
                echo sprintf('NO, >%s< is NOT a valid JSON string: %s', $string, json_last_error_msg()). PHP_EOL;
            }
        }

Output for 8.3.1 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7: NO, >foo< is NOT a valid JSON string: Syntax error NO, >{foo: bar}< is NOT a valid JSON string: Syntax error NO, >'{'foo': 'bar'}< is NOT a valid JSON string: Syntax error NO, >{...}< is NOT a valid JSON string: Syntax error YES, >"foo"< is a valid JSON string decoded: 'foo' YES, >1< is a valid JSON string decoded: 1 YES, >{"foo": "bar"}< is a valid JSON string decoded: (object) array( 'foo' => 'bar', )
Output for 8.1.27 - 8.1.34, 8.2.14 - 8.2.30: Fatal error: Uncaught Error: Call to undefined function json_validate() in /in/EIUPB:17 Stack trace: #0 {main} thrown in /in/EIUPB on line 17
Process exited with code 255.

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