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