PDO :: FETCH_ASSOC无法获取所有内容

Question

I have this function:

function get_following($user_id) {
 global $conn;
 $stmt = $conn->prepare("SELECT * FROM following WHERE `follower_id`=:user");
 $stmt->bindParam(':user', $user_id, PDO::PARAM_INT);
 $stmt->execute();
 $following =$stmt->fetch(PDO::FETCH_ASSOC);
 return $following;
}

The following table looks like this:

|user_id|follower_id|
|   2   |     5     |
|   3   |     5     |
|   4   |     5     |

Now the problem is when I actually call the function it only selects one of the rows from the table, where my follower_id = 5.

Answer 1

$following will have to be an array of rows. You are actually only fetching the first row. Fetch it using PDOStatement::fetchAll() , like this:

$following = $stmt->fetchAll(PDO::FETCH_ASSOC);