- var_dump: documentation ( source)
- print_r: documentation ( source)
- parse_url: documentation ( source)
<?php
var_dump(parse_url("http://www.realself.com/foo/bar?utm_source=wubba&utm_content=bubba#myhash"));
$null = null;
print_r(is_null(parse_url("http://example.com", PHP_URL_QUERY)));
?>