3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = 'a:4:{s:20:"option_list_contents";a:3:{s:4:"type";s:6:"master";s:3:"iId";s:1:"1";s:4:"list";a:2:{i:0;a:2:{s:2:"Id";s:4:"Male";s:3:"Val";s:4:"Male";}i:1;a:2:{s:2:"Id";s:6:"Female";s:3:"Val";s:6:"Female";}}}s:4:"size";s:6:"medium";s:16:"default_required";s:3:"Yes";s:14:"field_comments";s:0:"";}'; echo unserialize($str);
Output for 5.4.0 - 7.2.0
Notice: Array to string conversion in /in/WrFWq on line 3 Array
Output for 4.3.0 - 5.3.29
Array