PDO 更新错误无效参数号：绑定变量的数量与令牌的数量不匹配

Question

我正在编写一个简单的程序，但卡在更新查询上。错误显示“Uncaught PDOException: SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of token”。下面是代码

class PDContr extends PDedit{

  private $userFirstName;
  private $userLastName;

  public function __construct($userFirstName, $userLastName){

    $this->userFirstName = $userFirstName;
    $this->userLastName = $userLastName;
  }

  public function pdedit(){
    if($this->emptyInput() == false){
      header("location: ../personaldetail.php?error=emptyinput");
      exit();
    }
    if($this->invaliduid() == false){
      header("location: ../personaldetail.php?error=userFirstname");
      exit();
    }
    $this->setUser($this->userFirstName, $this->userLastName);
  }

下面是类扩展到我的数据库。难道是我没有定义user_ID，所以无法执行更新查询？

 class PDedit extends Dbh{
    
      protected function setUser($userFirstName, $userLastName){
        $stmt = $this->connect()->prepare('UPDATE user SET user_FirstName = ?, user_LastName = ? WHERE user_ID = ?);');
    
        if(!$stmt->execute(array($userFirstName, $userLastName))){
            $stmt = null;
            header("location: ../personaldetail.php?error=stmtfailed");
            exit();
        }
    
        $stmt = null;
    }
    
    }

Answer 1

你忘了加user_ID:

protected function setUser($userFirstName, $userLastName, $userId = null){ // Add param here
        $stmt = $this->connect()->prepare('UPDATE user SET user_FirstName = ?, user_LastName = ? WHERE user_ID = ?);');
    
        if(!$stmt->execute(array($userFirstName, $userLastName, $userId))){
            $stmt = null;
            header("location: ../personaldetail.php?error=stmtfailed");
            exit();
        }
    
        $stmt = null;
    }

希望能帮到你。