3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo json_encode( array( 'country' => 'UK', 'value' => 19 ), JSON_FORCE_OBJECT );
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
{"country":"UK","value":19}
Output for 5.2.0 - 5.2.17
Notice: Use of undefined constant JSON_FORCE_OBJECT - assumed 'JSON_FORCE_OBJECT' in /in/NQ8ML on line 8 Warning: json_encode() expects exactly 1 parameter, 2 given in /in/NQ8ML on line 8
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/NQ8ML 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/NQ8ML 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/NQ8ML 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/NQ8ML on line 2