<?php
$string = "stringa/stringb/123456789,abc,cde";
echo $string;
PD9waHAKCiAgICAkc3RyaW5nID0gInN0cmluZ2Evc3RyaW5nYi8xMjM0NTY3ODksYWJjLGNkZSI7CiAgICAkc3RyaW5nID0gcHJlZ19yZXBsYWNlKCclLiovKC4qPyksLiolJywgJyQxJywgJHN0cmluZyApOwogICAgZWNobyAkc3RyaW5nOw==