3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php //Source: https://bugs.php.net/bug.php?id=63898 $key = "Foo " . chr(163); $array = array($key => ""); print_r($array); $json = json_encode($array); echo "JSON:".$json."\n"; var_dump("JSON:", json_decode($json));
Output for 5.5.0 - 7.1.0
Array ( [Foo �] => ) JSON: string(5) "JSON:" NULL
Output for 5.2.7 - 5.3.13, 5.3.15 - 5.4.45
Array ( [Foo �] => ) JSON:{null:""} string(5) "JSON:" NULL
Output for 5.3.14
Array ( [Foo �] => ) Warning: json_encode(): Invalid UTF-8 sequence in argument in /in/cBHtJ on line 9 JSON: string(5) "JSON:" NULL
Output for 5.2.0 - 5.2.6
Array ( [Foo �] => ) JSON:{"Foo ":""} string(5) "JSON:" object(stdClass)#1 (1) { ["Foo "]=> string(0) "" }
Output for 5.0.0 - 5.1.6
Array ( [Foo �] => ) Fatal error: Call to undefined function json_encode() in /in/cBHtJ on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Array ( [Foo �] => ) Fatal error: Call to undefined function: json_encode() in /in/cBHtJ on line 9
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Array ( [Foo �] => ) Fatal error: Call to undefined function: json_encode() in /in/cBHtJ on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Array ( [Foo �] => ) Fatal error: Call to undefined function: json_encode() in /in/cBHtJ on line 9