Question

register.php

         <?php
include_once "pdo.php";
if(isset($_POST["submit"])){
     $user_pw = hash("sha256", $_POST['password']);
$params = [
                'pcode' => $pcode,
                'password' => $user_pw,
                'name' => $_POST['name'],
                'phone' => $_POST['number'],
                'grade' => $_POST['grade']
                ];
sql($db, "INSERT INTO member (pcode, password, name, phone, grade) VALUES (:pcode, :password, :name, :phone, :grade)", array($params));
}
?>

pdo.php

try {
  $db = new PDO("mysql:host=".HOST.";dbname=".NAME.";charset=utf8", "".USER."", "".PASS."");
  $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  // PDO fetch docs: http://php.net/manual/en/pdostatement.fetch.php
  $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
} catch (PDOException $e) {
  echo $e->getMessage();
}

// Simple function to handle PDO prepared statements
function sql($db, $q, $params, $return) {

  // Prepare statement
  $stmt = $db->prepare($q);
  // Execute statement
  $stmt->execute($params);
  // Decide whether to return the rows themselves, or just count the rows
  if ($return == "rows") {
    return $stmt->fetchAll();
  }
  elseif ($return == "count") {
    return $stmt->rowCount();
  }

错误

警告：缺少sql（）的参数4，该参数在第55行的/home/vvvvvvv/html/summit/new.php中调用，并在第19行的/home/vvvvvv/html/summit/pdo.php中定义
致命错误：未捕获的PDOException：SQLSTATE [HY093]：无效的参数编号：绑定变量的数量与/home/vvvvvv/html/summit/pdo.php中的令牌数量不匹配：24堆栈跟踪：＃0 / home /vvvvvv/html/summit/pdo.php(24）：PDOStatement-> execute（Array）＃1 /home/vvvvvv/html/summit/new.php(55）：sql（Object（PDO），'INSERT INTO mem ...'，数组）＃2 {main}在第24行的/home/vvvvvv/html/summit/pdo.php中抛出

出什么问题了？

Answer 1

当您创建数据时，您的参数已经是一个数组，因此当您将其作为array($params)传递时，它将嵌套数据。因此，只需在通话中将其删除...

sql($db, "INSERT INTO member (pcode, password, name, phone, grade) 
            VALUES (:pcode, :password, :name, :phone, :grade)", 
        $params, "rows" );

不确定最后一个参数是什么，但是我建议将其更改为其他参数。具有“行”或“计数”之类的文字可能容易出错。将其更改为布尔值-类似于true表示返回行，false表示计数。

PDO不起作用

1 个答案: