- print_r: documentation ( source)
- parse_url: documentation ( source)
<?php
print_r(parse_url('//test?query_string_MUST_start_here/this_is_also_query_string!'));
print_r(parse_url('//test#query_string_MUST_start_here/this_is_also_query_string!'));
print_r(parse_url('ftp://test?query_string_MUST_start_here/this_is_also_query_string!'));