3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo json_encode(array(100000000000000000000000000000000=>0, 1, 2, 3, 4));
Output for 5.5.0 - 7.1.0
{"-8809040871136690176":0,"0":1,"1":2,"2":3,"3":4}
Output for 5.3.0 - 5.4.45
[0,1,2,3,4]
Output for 5.2.0 - 5.2.17
{"-9223372036854775808":0,"0":1,"1":2,"2":3,"3":4}
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/igJRm 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/igJRm 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/igJRm 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/igJRm on line 2