3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('12' => 'aada'); echo json_decode($a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: json_decode(): Argument #1 ($json) must be of type string, array given in /in/o6lgh:4 Stack trace: #0 /in/o6lgh(4): json_decode(Array) #1 {main} thrown in /in/o6lgh on line 4
Process exited with code 255.
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: json_decode() expects parameter 1 to be string, array given in /in/o6lgh on line 4

preferences:
201.06 ms | 403 KiB | 221 Q