Online PHP editor | output for 5TvMY

<?php $ser = 'a:5:{s:5:"width";i:559;s:6:"height";i:830;s:4:"file";s:19:"2017/07/frans-1.png";s:5:"sizes";a:3:{s:9:"thumbnail";a:4:{s:4:"file";s:19:"frans-1-150x150.png";s:5:"width";i:150;s:6:"height";i:150;s:9:"mime-type";s:9:"image/png";}s:6:"medium";a:4:{s:4:"file";s:19:"frans-1-202x300.png";s:5:"width";i:202;s:6:"height";i:300;s:9:"mime-type";s:9:"image/png";}s:14:"post-thumbnail";a:4:{s:4:"file";s:19:"frans-1-559x510.png";s:5:"width";i:559;s:6:"height";i:510;s:9:"mime-type";s:9:"image/png";}}s:10:"image_meta";a:12:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";s:11:"orientation";s:1:"0";s:8:"keywords";a:0:{}}}'; $new_ser=unserialize($ser); $new_ser['file'] = '2017/07/frans-2.png'; echo serialize($new_ser);