PHP从MySQL

Question

我正在尝试为我的表单获取parentId的所有行。但是我的下面的代码不能只将1个记录提取到我的数组中：

public function getChildByParent($parentId)
{
    $stmt = $this->conn->prepare("SELECT childId, nick, relation FROM childId WHERE parentId = ?");
    $stmt->bind_param("s", $parentId);
    $stmt->execute();
    $stmt->bind_result($childId, $nick, $relation);
    $stmt->fetch();
    $user = array();
    $user['childId'] = $childId;
    $user['nick'] = $nick;
    $user['relation'] = $relation;
    return $user;
}

我知道我需要将$stmt->fetch()和$user = array()调整到fetch_all。你能帮我解决一下这段代码吗？

感谢您的努力。

Answer 1

使用$stmt->get_result()设置$result->fetch_all()以在一次通话中获取所有记录。

<强>尝试：

public function getChildByParent($parentId)
{
    $stmt = $this->conn->prepare("SELECT childId, nick, relation FROM childId WHERE parentId = ?");
    $stmt->bind_param("i", $parentId);
    $stmt->execute();
    $result = $stmt->get_result();
    $user = $result->fetch_all(MYSQLI_ASSOC);
    $stmt->close();
    return $user;
}