php - 非静态方法 PDO::quote() 不能静态调用，

Question

$username = $_POST['username']; 
$password = $_POST['password'];


 $db = new PDO('mysql:host='.$DB_HOST.';dbname='.$DB_DATABASE.'', ''.$DB_USER.'', ''.$DB_PASSWORD.'');

$query = $db->query("SELECT * FROM login_details WHERE username=:username AND password=:password");
$query->bindValue(':username', $username, PDO::PARAM_STR);
$query->bindValue(':password', $password, PDO::PARAM_STR);
$query->execute();
$row_count = $query->rowCount();

尝试从数据库中做一个简单的用户名和密码检查.. 我已经超出了沮丧的地步......

Answer 1

改用 prepare。

$username = $_POST['username']; 
$password = $_POST['password'];

$db = new PDO('mysql:host='.$DB_HOST.';dbname='.$DB_DATABASE.'', ''.$DB_USER.'', ''.$DB_PASSWORD.'');

$query = "SELECT * FROM login_details WHERE username=:username AND password=:password";
$statement = $db->prepare($query);
$statement->bindValue(':username', $username, PDO::PARAM_STR);
$statement->bindValue(':password', $password, PDO::PARAM_STR);


$statement->execute();
$row_count = $statement->rowCount();

echo $row_count;

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