- unserialize: documentation ( source)
<?php
$a = 'a:5:{i:0;s:18:"processing_consent";i:1;s:17:"insurant_passport";i:2;s:32:"vehicle_registration_certificate";i:3;s:23:"driver1_driving_license";i:4;s:38:"certificate_of_dissolution_of_marriage"}';
echo unserialize($a);