3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo json_encode(array(NAN == NAN, NAN > NAN, NAN < NAN, NAN <= NAN, NAN >= NAN));
Output for 5.2.0 - 5.3.29, 7.0.0 - 7.1.0
[false,true,true,true,true]
Output for 5.4.0 - 5.6.28
[false,false,false,false,false]
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/bimCc on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/bimCc on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/bimCc on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/bimCc on line 3