3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $data = array(); $data["int"] = 1; $int = 0; $data["string"] = "".$int; print json_encode($data); ?>
Output for 5.2.0 - 7.2.0
{"int":1,"string":"0"}
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/tH3FL on line 6
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/tH3FL on line 6
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/tH3FL on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/tH3FL on line 6