รบกวนช่วยดู Code ให้ทีครับ ผลคิวรี่แสดงแค่แถวแรกเองครับ

include ("./mysqli.php");

$mysql->query("
	SELECT *
	FROM category
	ORDER by cat_id asc
	");

while ($loop_1 = $mysql->fetch()) {
	print_r($loop_1);

		$mysql->query ("
			SELECT idp,cat_id,product_name
			FROM product
			WHERE cat_id='$loop_1[cat_id]'
			ORDER by idp asc
			");

			while ($loop_2 = $mysql->fetch()) {
				print_r($loop_2);
			}
}

Array
(
    [cat_id] => 2
    [cat_name] => เสื้อผ้า
    [cat_slug] => clothes
)
Array
(
    [idp] => 165
    [cat_id] => 2
    [product_name] => Johnnie Walker Black Label
)
Array
(
    [idp] => 346
    [cat_id] => 2
    [product_name] => JIM BEAM BLACK
)

Array
(
    [cat_id] => 2
    [cat_name] => เสื้อผ้า
    [cat_slug] => clothes
)
Array
(
    [idp] => 165
    [cat_id] => 2
    [product_name] => Johnnie Walker Black Label
)
Array
(
    [idp] => 346
    [cat_id] => 2
    [product_name] => JIM BEAM BLACK
)

Array
(
    [cat_id] = 5
    [cat_name] = เครื่องดื่ม
    [cat_slug] = alc
)
Array
(
    [idp] = 86
    [cat_id] = 5
    [product_name] = Malibu Coconut RUM
)
Array
(
    [idp] = 105
    [cat_id] = 5
    [product_name] = Absolut Kurant
)

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