Description:
------------
parse_url does not correctly handle these relative URLs:

a.cgi?keywords=6:54+
a.cgi?keywords=6:54

In the reproduce code is correct PHP implementation.


Reproduce code:
---------------
	function url_parse($url)
	{
		$parts = array(
			'scheme' => '',
			'host' => '',
			'port' => '',
			'user' => '',
			'pass' => '',
			'path' => '',
			'query' => '',
			'fragment' => ''
		);

		# Regular Expression from RFC 2396 (appendix B)
		preg_match('"^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?"', $url, $matches);
		
		if (array_key_exists(2, $matches)) $parts['scheme'] = $matches[2];
		if (array_key_exists(4, $matches)) $authority = $matches[4];
		if (array_key_exists(5, $matches)) $parts['path'] = $matches[5];
		if (array_key_exists(7, $matches)) $parts['query'] = $matches[7];
		if (array_key_exists(9, $matches)) $parts['fragment'] = $matches[9];
		
		# Extract username, password, host and port from authority
		preg_match('"(([^:@]*)(:([^:@]*))?@)?([^:]*)(:(.*))?"', $authority, $matches);

		if (array_key_exists(2, $matches)) $parts['user'] = $matches[2];
		if (array_key_exists(4, $matches)) $parts['pass'] = $matches[4];
		if (array_key_exists(5, $matches)) $parts['host'] = $matches[5];
		if (array_key_exists(7, $matches)) $parts['port'] = $matches[7];
		
		return $parts;
	}