3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php json_encode($arr, JSON_FORCE_OBJECT);
Output for 7.2.0
Notice: Undefined variable: arr in /in/CaNBX on line 3 Warning: Use of undefined constant  JSON_FORCE_OBJECT - assumed ' JSON_FORCE_OBJECT' (this will throw an Error in a future version of PHP) in /in/CaNBX on line 3 Warning: json_encode() expects parameter 2 to be integer, string given in /in/CaNBX on line 3
Output for hhvm-3.10.1 - 3.11.1, hhvm-3.13.2 - 3.17.3, 7.0.0 - 7.1.10
Notice: Undefined variable: arr in /in/CaNBX on line 3 Notice: Use of undefined constant  JSON_FORCE_OBJECT - assumed ' JSON_FORCE_OBJECT' in /in/CaNBX on line 3 Warning: json_encode() expects parameter 2 to be integer, string given in /in/CaNBX on line 3
Output for hhvm-3.12.14

Process exited with code 137.
Output for 5.3.0 - 5.6.30
Notice: Undefined variable: arr in /in/CaNBX on line 3 Notice: Use of undefined constant  JSON_FORCE_OBJECT - assumed ' JSON_FORCE_OBJECT' in /in/CaNBX on line 3 Warning: json_encode() expects parameter 2 to be long, string given in /in/CaNBX on line 3
Output for 5.2.0 - 5.2.17
Notice: Undefined variable: arr in /in/CaNBX on line 3 Notice: Use of undefined constant  JSON_FORCE_OBJECT - assumed ' JSON_FORCE_OBJECT' in /in/CaNBX on line 3 Warning: json_encode() expects exactly 1 parameter, 2 given in /in/CaNBX on line 3
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/CaNBX 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/CaNBX 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/CaNBX 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/CaNBX on line 3