3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo json_encode(array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 42));
Output for 5.2.0 - 7.1.0
[1,2,3,4,5,6,7,8,9,10,42]
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/6HPiU on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/6HPiU on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/6HPiU on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/6HPiU on line 2