mysql - 选择包含所有数组值的位置

Question

我有这张桌子：

ID    |    Product_ID    |    Filter_ID
1          1                  8
2          1                  9
3          2                  10

我还有php数组包含要检查的过滤器：

$arr = (8,9,10);

现在，如何确保Product_ID（1）具有$ arr中的所有过滤器？

Answer 1

如果您只想要那些包含所有3个filter_id的product_id，请尝试：

 $sql = "SELECT COUNT(*) AS total, Product_ID FROM `test`.`test` WHERE Filter_ID IN (".implode(', ', $arr).") GROUP BY Product_ID HAVING total >= ". sizeof($arr);

http://sqlfiddle.com/#!2/e949f/7/0

<强> @edit

如果您只需知道特定的Product_ID是否具有全部3个Filter_IDS：

 $sql = "SELECT COUNT(*) AS total, Product_ID FROM `test`.`test` WHERE Filter_ID IN (".implode(', ', $arr).") and Product_ID = 1 GROUP BY Product_ID HAVING total >= ". sizeof($arr);

Answer 2

$arr = [8, 9, 10];
$sql = "SELECT * FROM `Table` WHERE `Filter_ID` IN (".implode(', ', $arr).")";