3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array(); for ($i = 0; $i < 49096; $i++) $array = array($array); $s = microtime(true); json_encode($array); var_dump(microtime(true) - $s);
Output for 5.2.0 - 7.1.7, 7.2.0

Process exited with code 139.
Output for 7.1.10

Process exited with code 137.
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/TsrAI on line 10
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/TsrAI on line 10
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/TsrAI on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/TsrAI on line 10