Iri::parse_iri( string $iri ): array

Source

protected function parse_iri($iri) {
	$iri = trim($iri, "\x20\x09\x0A\x0C\x0D");
	$has_match = preg_match('/^((?P<scheme>[^:\/?#]+):)?(\/\/(?P<authority>[^\/?#]*))?(?P<path>[^?#]*)(\?(?P<query>[^#]*))?(#(?P<fragment>.*))?$/', $iri, $match);
	if (!$has_match) {
		throw new Exception('Cannot parse supplied IRI', 'iri.cannot_parse', $iri);
	}

	if ($match[1] === '') {
		$match['scheme'] = null;
	}
	if (!isset($match[3]) || $match[3] === '') {
		$match['authority'] = null;
	}
	if (!isset($match[5])) {
		$match['path'] = '';
	}
	if (!isset($match[6]) || $match[6] === '') {
		$match['query'] = null;
	}
	if (!isset($match[8]) || $match[8] === '') {
		$match['fragment'] = null;
	}
	return $match;
}

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