$x = array(
				  "type"=> "flex",
				  "altText"=> "Flex Message",
				  "contents"=> array(
					"type"=> "bubble",
					"footer"=> array(
					  "type"=> "box",
					  "layout"=> "vertical",
					  "flex"=> 0,
					  "spacing"=> "sm",
					  "contents"=> array(
						array(
						  "type"=> "button",
						  "action"=> array(
							"type"=> "postback",
							"label"=> "HOT",
							"text"=> "hot",
							"data"=> "8"
						  ),
						  "height"=> "sm",
						  "style"=> "link"
						),
						array(
						  "type"=> "button",
						  "action"=> array(
							"type"=> "postback",
							"label"=> "ice",
							"text"=> "ice",
							"data"=> "4"
						  ),
						  "height"=> "md"
						),
						array(
						  "type"=> "button",
						  "action"=> array(
							"type"=> "message",
							"label"=> "SALAH",
							"text"=> "ice"
									)
						)
					  )
					)
					)
				);