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run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode(json_encode(array("foo\0bar" => "xyz\0qwe")), true), json_encode(array("foo\0bar" => "xyz\0qwe")));
Output for 5.2.2 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(1) { ["foobar"]=> string(7) "xyzqwe" } string(31) "{"foo\u0000bar":"xyz\u0000qwe"}"
Output for 5.2.0 - 5.2.1
NULL string(21) "{"foobar":"xyzqwe"}"
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/8f7jE on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/8f7jE on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/8f7jE on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/8f7jE on line 2

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