3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'a:2:{i:0;i:5;i:1;i:4;i:2;i:7;}'; var_dump(@unserialize($str)); echo '<br />'; var_dump(@unserialize($str));
Output for 4.3.0 - 7.1.0
bool(false) <br />bool(false)