<?
/* 	function get_key_from_value ($value, $array) {
  	if (is_array ($array)) {
      if (!in_array ($value, $array)) {
            ksort ($array);
            end ($array);
            $key = key ($array) + 1;
            $array[$key] = $value;
      } else {
            $key = array_search ($value, $array);
      }
    } else {
        $key = 1;
        $array[$key] = $value;
    }
    return $key;
	} */
	
	function get_site_path() {
		$proto = $_SERVER['HTTPS'] ? 'https://' : 'http://';
		$host = $_SERVER['SERVER_NAME'];
		if (!isset($_SERVER['REQUEST_URI'])) {
     $_SERVER['REQUEST_URI'] = substr($_SERVER['PHP_SELF'],1 );
     if (isset($_SERVER['QUERY_STRING'])) { $_SERVER['REQUEST_URI'].='?'.$_SERVER['QUERY_STRING']; }
		}
		$uri = preg_replace("/\?.*/", '', $_SERVER['REQUEST_URI']);
		$base_uri = substr($uri, 0, strrpos($uri, "/"));
		$file = substr($uri, strrpos($uri, "/") + 1, strlen($uri));
		return array("proto"=>$proto, "host"=>$host, "base"=>$base_uri, "filename"=>$file);
	}
	
	function check_address ($address) {
		$address = trim($address);
	 	return preg_match('/^(?:[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+\.)*[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+@(?:(?:(?:[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!\.)){0,61}[a-zA-Z0-9_-]?\.)+[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!$)){0,61}[a-zA-Z0-9_]?)|(?:\[(?:(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\]))$/', $address);	
	}
?>