正在获取SQLSTATE [HY093]:无效的参数编号:在第12行的E:\ wamp64 \ www \ social \ classes \ db.php中未绑定任何参数 [英] Getting SQLSTATE[HY093]: Invalid parameter number: no parameters were bound in E:\wamp64\www\social\classes\db.php on line 12 error
本文介绍了正在获取SQLSTATE [HY093]:无效的参数编号:在第12行的E:\ wamp64 \ www \ social \ classes \ db.php中未绑定任何参数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在创建一个社交网络的登录页面,但是当我登录时,出现上述错误.我的db.php是(我使用pdo):
I'm making a social network's login page but when I login a get the error above. My db.php is (i use pdo):
<?php
class DB {
private static function connect() {
$pdo = new PDO('mysql:host=127.0.0.1;dbname=social;charset=utf8', 'danny', 'password');
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return $pdo;
}
public static function query($query, $params = array()) {
$statement = self::connect()->prepare($query);
$statement->execute($params);
if (explode(' ', $query)[0] == 'SELECT') {
$data = $statement->fetchAll();
return $data;
}
}
}
?>
从
$user_id = DB::query('SELECT id
FROM users
WHERE email=:email')[0]['id'];
DB::query('INSERT INTO login_tokens
VALUES(\'\', :token, :user_id)',
array(':token'=>sha1($token), ':user_id'=>$user_id));
推荐答案
您的课程有很多问题.修复它们:
Your class has many issues. to fix them:
class DB {
protected static $pdo;
public static function connect() {
static::$pdo = new PDO('mysql:host=127.0.0.1;dbname=social;charset=utf8', 'danny', 'Dani2034');
static::$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
public static function query($query, $params = array()) {
$statement = self::$pdo->prepare($query);
$statement->execute($params);
return $statement;
}
}
DB::connect(); // called only once
$user_id = DB::query('SELECT id FROM users WHERE email=?', array($email))->fetchColumn();
DB::query('INSERT INTO login_tokens VALUES(null, ?, ?)', array(sha1($token), $user_id));
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