Php PDO::FETCH_ASSOC不获取所有内容
我有这个功能:Php PDO::FETCH_ASSOC不获取所有内容,php,mysql,function,pdo,Php,Mysql,Function,Pdo,我有这个功能: 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
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;
}
下面的表如下所示:
|user_id|follower_id|
| 2 | 5 |
| 3 | 5 |
| 4 | 5 |
$following = $stmt->fetchAll(PDO::FETCH_ASSOC);
现在的问题是,当我实际调用函数时,它只从表中选择一行,其中我的follower_id=5。$following必须是一个行数组。实际上,您只获取第一行。使用以下方法获取它:
|user_id|follower_id|
| 2 | 5 |
| 3 | 5 |
| 4 | 5 |
$following = $stmt->fetchAll(PDO::FETCH_ASSOC);
谢谢你的快速回复!工作得很好!提示:阅读该功能的手册页通常会有所帮助