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<?php |
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|
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namespace YoastSEO_Vendor\GuzzleHttp\Psr7; |
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|
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final class Header |
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{ |
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/** |
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* Parse an array of header values containing ";" separated data into an |
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* array of associative arrays representing the header key value pair data |
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* of the header. When a parameter does not contain a value, but just |
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* contains a key, this function will inject a key with a '' string value. |
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* |
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* @param string|array $header Header to parse into components. |
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* |
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* @return array Returns the parsed header values. |
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*/ |
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public static function parse($header) |
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{ |
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static $trimmed = "\"' \n\t\r"; |
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$params = $matches = []; |
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foreach (self::normalize($header) as $val) { |
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$part = []; |
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foreach (\preg_split('/;(?=([^"]*"[^"]*")*[^"]*$)/', $val) as $kvp) { |
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if (\preg_match_all('/<[^>]+>|[^=]+/', $kvp, $matches)) { |
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$m = $matches[0]; |
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if (isset($m[1])) { |
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$part[\trim($m[0], $trimmed)] = \trim($m[1], $trimmed); |
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} else { |
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$part[] = \trim($m[0], $trimmed); |
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} |
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} |
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} |
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if ($part) { |
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$params[] = $part; |
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} |
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} |
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return $params; |
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} |
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/** |
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* Converts an array of header values that may contain comma separated |
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* headers into an array of headers with no comma separated values. |
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* |
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* @param string|array $header Header to normalize. |
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* |
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* @return array Returns the normalized header field values. |
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*/ |
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public static function normalize($header) |
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{ |
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if (!\is_array($header)) { |
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return \array_map('trim', \explode(',', $header)); |
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} |
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$result = []; |
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foreach ($header as $value) { |
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foreach ((array) $value as $v) { |
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if (\strpos($v, ',') === \false) { |
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$result[] = $v; |
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continue; |
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} |
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foreach (\preg_split('/,(?=([^"]*"[^"]*")*[^"]*$)/', $v) as $vv) { |
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$result[] = \trim($vv); |
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} |
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} |
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} |
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return $result; |
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} |
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} |
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