public function add(array $headers) {
        foreach ($headers as $key => $values) {
            $this->set($key, $values);
        }
        return $this;
    }
public function add(array $headers) {
        foreach ($headers as $key => $values) {
            $this->set($key, $values);
        }
        return $this;
    }
public function add ( array $ headers ) { foreach ( $ headers as $ key => $ values ) { $ this -> set ( $ key , $ values ) ; } return $ this ; }
Adds new headers the current HTTP headers set.

@param array $headers An array of HTTP headers
@return $this
Adds new headers the current HTTP headers set .