public function contains($key, $value) {

		return in_array($value, $this->get($key, NULL, FALSE));

	}
public function contains($key, $value) {

		return in_array($value, $this->get($key, NULL, FALSE));

	}
public function contains ( $ key , $ value ) { return in_array ( $ value , $ this -> get ( $ key , NULL , FALSE ) ) ; }
Returns TRUE if the given HTTP header contains the given value.

@param string $key   The HTTP header name
@param string $value The HTTP value

@return Boolean TRUE if the value is contained in the header, FALSE otherwise
Returns TRUE if the given HTTP header contains the given value .