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<?php var_dump(parse_url('www.w3.org/Addressing/')); preg_match('~^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?~', 'urn://user:pass@:123/foo', $m); var_dump($m);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array(1) { ["path"]=> string(22) "www.w3.org/Addressing/" } array(6) { [0]=> string(24) "urn://user:pass@:123/foo" [1]=> string(4) "urn:" [2]=> string(3) "urn" [3]=> string(16) "//user:pass@:123" [4]=> string(14) "user:pass@:123" [5]=> string(4) "/foo" }

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159.3 ms | 404 KiB | 295 Q