3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $a[] = $a; var_dump(count($a,COUNT_RECURSIVE));
Output for 4.3.0 - 5.0.5, 5.2.6 - 7.1.0
int(1)
Output for 5.1.0 - 5.2.5

Process exited with code 139.