- unserialize: documentation ( source)
<?php
echo unserialize('a:1:{s:4:"docs";a:4:{i:0;a:1:{s:15:"property_imgurl";s:63:"http://wwww.example.com/image1.jpg";}i:1;a:1:{s:15:"property_imgurl";s:63:"http://wwww.example.com/image2.jpg";}i:2;a:1:{s:15:"property_imgurl";s:63:"http://wwww.example.com/image3.jpg";}i:3;a:1:{s:15:"property_imgurl";s:63:"http://wwww.example.com/image4.jpg";}}}');