json_encode, * which is a value of any type other than a resource. * @since 5.4.0 */ function jsonSerialize() { return [ "Image" => $this->_image ]; } private $_image; /** * @return mixed */ public function getImage() { return $this->_image; } /** * @param mixed $image */ public function setImage($image) { $this->_image = $image; } }