php - 具有多个参数的 PHP bindParam() 函数

Question

小伙伴们怎么了

我有以下代码：

$selectUserQuery = 'SELECT email_address, password FROM user WHERE email_address = :email_address AND password = :password';
$prepSelectUser = $conn->prepare($selectUserQuery);
/*
* HOW DO I ADD MULTIPLE PARAMETERS TO THIS BINDPARAM() FUNCTION?
*/
$prepSelectUser->bindParam(':email_address', $email, PDO::PARAM_INT);
$prepSelectUser->execute();
$userResult = $prepSelectUser->fetchAll();
$userCount = count($userResult);

如何向 bindParam() 函数添加多个参数？

Answer 1

您实际上根本不需要此功能。以及您使用的大多数其他代码。

$sql  = 'SELECT 1 FROM user WHERE email_address = ? AND password = ?';
$stmt = $conn->prepare($sql);
$stmt->execute([$email, $password]);
$userCount = $stmt->fetchColumn();

Answer 2

一、改变

$prepSelectUser->bindParam(':email_address', $email, PDO::PARAM_INT);

至

$prepSelectUser->bindParam(':email_address', $email, PDO::PARAM_STR);

然后调用另一个 bindParam，比如

$prepSelectUser->bindParam(':password', $password, PDO::PARAM_STR);