3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = 1; for ($i=0; $i < 3; $i++) { $x = $x / 10^$i; var_dump($x, json_encode($x)); }
Output for 5.2.0 - 7.1.0
int(0) string(1) "0" int(1) string(1) "1" int(2) string(1) "2"
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/DoGE3 on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/DoGE3 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/DoGE3 on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/DoGE3 on line 7