参数号PDO

Question

得到了这个：

public function Register($uname,$pass,$mail)
    {
        try
        {
            $new_password = password_hash($pass, PASSWORD_DEFAULT);
            $stmt = $this->db->prepare("INSERT INTO users(username,email,password)
            VALUES(:uname, :mail, :pass)");

            $stmt->bindparam(":uname, $uname");
            $stmt->bindparam(":mail, $mail");
            $stmt->bindparam(":pass, $new_password");
            $stmt->execute();
        }
        catch (PDOException $e)
        {
            echo $e->getMessage();
        }
    }

当我尝试注册它时会抛出一个错误：SQLSTATE [HY093]：参数号无效：没有绑定任何参数。正在通过互联网寻找答案，但还没有找到，也许你们，伙计们，有一些想法？

Answer 1

您应该使用bindparam(':name', $name)代替bindparam(':name, $name')。第一个参数是参数slug的名称，第二个参数是要绑定的变量。

public function Register($uname,$pass,$mail)
{
    try
    {
        $new_password = password_hash($pass, PASSWORD_DEFAULT);
        $stmt = $this->db->prepare("INSERT INTO users(username,email,password)
        VALUES(:uname, :mail, :pass)");

        //note the quotes!
        $stmt->bindParam(":uname", $uname);
        $stmt->bindParam(":mail", $mail);
        $stmt->bindParam(":pass", $new_password);
        $stmt->execute();
    }
    catch (PDOException $e)
    {
        echo $e->getMessage();
    }
}