3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( "test" => 123, "test2" => 345, "text3" => array("awesome") ); $a = json_encode($array); $b = json_decode($a); echo "<pre>"; print_r($array); print_r($b);
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<pre>Array ( [test] => 123 [test2] => 345 [text3] => Array ( [0] => awesome ) ) stdClass Object ( [test] => 123 [test2] => 345 [text3] => Array ( [0] => awesome ) )
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/sAYpr on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/sAYpr on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/sAYpr on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/sAYpr on line 9
preferences:
263.32 ms | 401 KiB | 422 Q