abcarroll · September 12, 2015 08:39
diff --git a/HTTP Cookie header parser b/HTTP Cookie header parser
 <?php
 /*
 Ben's quick and dirty HTTP cookie header parser

 HTTP cookie headers are actually quite tricky to parse, because the expiry date often contains a comma, and commas are supposed to be the delimiter between individual cookies.

 This parser cheats by splitting the cookie header based on the equals sign, and reconstructing the key pairs in a loop.

 This sample code doesn't support all cookie properties, but it ought to be trivial to add more. It hasn't been tested a great deal, so use at your own risk.

 I originally wrote this in Objective-C for ASIHTTPRequest (http://allseeing-i.com/asi-http-request) before I discovered Apple's function that does this for you (DOH!), but I'd guess this PHP port is likely to be more useful to more people. Even if you hate PHP with a passion, you ought to be able to read it well enough to port it to whatever language you like.

 More random stuff at:

 http://www.allseeing-i.com

 */

 $example_cookie_header = "ASIHTTPRequestTestCookie=This+is+the+value; expires=Sat, 26-Jul-2008 17:00:42 GMT; path=/tests; domain=allseeing-i.com, PHPSESSID=6c951590e7a9359bcedde25cda73e43c; path=/";

 print_r(parse_cookies($example_cookie_header));

 function parse_cookies($header) {
 	
 	$cookies = array();
 	
 	$cookie = new cookie();
 	
 	$parts = explode("=",$header);
 	for ($i=0; $i< count($parts); $i++) {
 		$part = $parts[$i];
 		if ($i==0) {
 			$key = $part;
 			continue;
 		} elseif ($i== count($parts)-1) {
 			$cookie->set_value($key,$part);
 			$cookies[] = $cookie;
 			continue;
 		}
 		$comps = explode(" ",$part);
 		$new_key = $comps[count($comps)-1];
 		$value = substr($part,0,strlen($part)-strlen($new_key)-1);
 		$terminator = substr($value,-1);
 		$value = substr($value,0,strlen($value)-1);
 		$cookie->set_value($key,$value);
 		if ($terminator == ",") {
 			$cookies[] = $cookie;
 			$cookie = new cookie();
 		}
 		
 		$key = $new_key;
 	}
 	return $cookies;
 }

 class cookie {
 	public $name = "";
 	public $value = "";
 	public $expires = "";
 	public $domain = "";
 	public $path = "";
 	public $secure = false;
 	
 	public function set_value($key,$value) {
 		switch (strtolower($key)) {
 			case "expires":
 				$this->expires = $value;
 				return;
 			case "domain":
 				$this->domain = $value;
 				return;
 			case "path":
 				$this->path = $value;
 				return;
 			case "secure":
 				$this->secure = ($value == true);
 				return;
 		}
 		if ($this->name == "" && $this->value == "") {
 			$this->name = $key;
 			$this->value = $value;
 		}
 	}
 }