echo http_build_url(parse_url("http://example.org/orig?q=1#f"),
parse_url("https://www.example.com:9999/replaced#n")), "\n";
echo http_build_url(("http://example.org/orig?q=1#f"),
echo http_build_url(parse_url("http://example.org/orig?q=1#f"),
parse_url("https://www.example.com:9999/replaced#n")), "\n";
echo http_build_url(("http://example.org/orig?q=1#f"),