- var_dump: documentation ( source)
- implode: documentation ( source)
- explode: documentation ( source)
<?php
var_dump(explode(",", "1,2,3"));
var_dump(explode(",", "2"));
var_dump(explode(",", ""));
var_dump(implode(",", array(1, 2, 3)));
var_dump(implode(",", array()));