PDO IN() Array Statement AND a placeholder

Question

I found this code on SO, which is great for using PDO and the IN() statement together.

$values = explode(\',\', $values) ; # 1,4,7

$placeholders = rtrim(str         


        

Answer 1

$stm->execute($values,$product) ; //error happens when adding product placeholder

The problem here is that execute needs a single array. You can't pass multiple arrays, and worse, you can't nest arrays.

We already have a perfectly good $values array, so let's reuse it after you create the placeholder string.

$values = explode(',', $values) ; # 1,4,7

$placeholders = rtrim(str_repeat('?, ', count($values)), ', ') ;
$query = "SELECT * FROM table WHERE id IN ($placeholders) AND product=?";

// New!
$values[] = $product;

$stm = $db->prepare($query);
$stm->execute($values);