- unserialize: documentation ( source)
<?php
$test = 'a:3:{i:0;s:43:"all-in-one-seo-pack/all_in_one_seo_pack.php";i:1;s:49:"autoset-featured-image/autoset-featured-image.php";i:2;s:36:"contact-form-7/wp-contact-form-7.php";}';
$test2 = unserialize($test);
print $test;