3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // https://bugs.php.net/bug.php?id=45989 var_dump(json_decode('[')); // unmatched bracket var_dump(json_decode('{')); // unmatched brace var_dump(json_decode('{}}')); // unmatched brace var_dump(json_decode('{error error}')); // invalid object key/value notation var_dump(json_decode('["\"]')); // unclosed string var_dump(json_decode('[" \x "]')); // invalid escape code // Yet the following each returns the literal argument as a string: var_dump(json_decode(' [')); var_dump(json_decode(' {')); var_dump(json_decode(' {}}')); var_dump(json_decode(' {error error}')); var_dump(json_decode('"\"')); var_dump(json_decode('" \x "'));
Output for 5.2.0, 5.2.9 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL
Output for 5.2.1 - 5.2.8
NULL NULL NULL NULL NULL NULL string(2) " [" string(2) " {" string(4) " {}}" string(14) " {error error}" string(1) "\" string(4) " \x "
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/DLl6u on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/DLl6u on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/DLl6u on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/DLl6u on line 5