PDO::bindParam 在 foreach 循环中，所有值都设置为相同吗?

PDO::bindParam in a foreach loop, all values are being set as the same?(PDO::bindParam 在 foreach 循环中，所有值都设置为相同吗?)

问题描述

我正在尝试使用 a 函数让重复的数据库调用变得更容易一些，该函数应该(理论上)允许我使用数组绑定参数:

I am trying to make life a little bit easier for repeated database calls with the a function which should (in theory) allow me to bind parameters using an array:

    function query($tblName,$queryParams = false){
    $this->queryObject = $this->con->prepare($this->queryString);
    if($queryParams){
        foreach ($queryParams as $key => $value) {
            $this->queryObject->bindParam($key, $value);
        }
    }
    $this->queryResult = $this->queryObject->execute();
    print_r($this->queryResult);
}

然后我会这样称呼它:

$queryParams = array(':userName' => $_POST['username'], ':password' => $_POST['password'], ':salt'=>$userUser->salt, ':userEmail'=>$_POST['email']);
$registrationDb->query('tblUser', $queryParams);

数据库连接正在工作，正在写入，但是，所有值都被设置为 $_POST['email]，我无法弄清楚为什么会这样正在发生.

The database connection is working, and there is a write being made, however, all the values are being set to $_POST['email], and I can't puzzle out why this is happening.

有没有更好的方法来做到这一点?

Is there a better way to be doing this?

推荐答案

bindParam 通过引用绑定变量，所以你需要 bindValue 代替:

bindParam binds variable by reference, so you need bindValue instead:

$this->queryObject->bindValue($key, $value);

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