3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $serialized_fake_keys = 'a:3:{i:0;i:1;i:0;i:2;i:0;i:3;}'; $hell = unserialize($serialized_fake_keys); var_dump(count($hell), $hell);
Output for 4.3.0 - 7.2.6
int(1) array(1) { [0]=> int(3) }