PDO 数据库插入

Question

嗨，我在 mysql 中有一个表，有六个字段

ID, mobileNumber, firstName, lastName, email, password , rollID

ID 是自动递增的，我想使用 php 插入它

php代码

public function run($firstName, $lastName, $mobileNumber, $email, $password, $rePassword) {
        if (!$this->db->isExistedMobile($mobileNumber)) {
            try {
               $query = "INSERT INTO user (firstName, lastName, mobileNumber, email, password, rollID)
                VALUES (:firstName, :lastName, :mobileNumber, :email, :password, 'rollID')";
                $sth = $this->db->prepare($query);
                $sth->execute(array(
                    ':firstName' => $firstName,
                    ':lastName' => $lastName,
                    ':mobileNumber' => $mobileNumber,
                    ':email' => $email,
                    ':password' => $password,
                    ':rollID' => "roma"
                ));
                header("location: " . URL . "index");
            } catch (PDOException $e) {
                die($e->getMessage());
                exit;
            }
        } else {
            include 'controlers/Error.php';
            $error = new Error();
            $error->index("you enterd a used mobile number");
        }
    }

我有这个例外

SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens

函数 isExistedMobile 总是返回 false 所以不用担心，我不知道哪里错了，是语法吗？还是在rollID cos中我使它成为静态的？ 谢谢你的帮助:)

Answer 1

问题（your original code）是参数数组有一个尾随逗号，这在其中创建了一个额外的null 元素。

我建议按原计划恢复到该版本（使用 rollID 的文字值），但请确保删除 $password 之后的尾随逗号：

public function run($firstName, $lastName, $mobileNumber, $email, $password, $rePassword) {
        if (!$this->db->isExistedMobile($mobileNumber)) {
            $query = "INSERT INTO user (firstName, lastName, mobileNumber, email, password, rollID)
                VALUES (:firstName, :lastName, :mobileNumber, :email, :password, 'ddd')";
            $sth = $this->db->prepare($query);
            $sth->execute(array(
                ':firstName' => $firstName,
                ':lastName' => $lastName,
                ':mobileNumber' => $mobileNumber,
                ':email' => $email,
                ':password' => $password  // , removed from here
            ));
            header("location: " . URL . "index");
        } else {
            include 'controlers/Error.php';
            $error = new Error();
            $error->index("you enterd a used mobile number");
        }
    }