protected function getRequestHeader($Name)
    {
        $headers = self::getAllRequestHeaders();
        if (isset($headers[strtolower($Name)])) {
            return $headers[strtolower($Name)];
        }
        return false;
    }
protected function getRequestHeader($Name)
    {
        $headers = self::getAllRequestHeaders();
        if (isset($headers[strtolower($Name)])) {
            return $headers[strtolower($Name)];
        }
        return false;
    }
protected function getRequestHeader ( $ Name ) { $ headers = self :: getAllRequestHeaders ( ) ; if ( isset ( $ headers [ strtolower ( $ Name ) ] ) ) { return $ headers [ strtolower ( $ Name ) ] ; } return false ; }
Get a request header

@return string|false
Get a request header