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您好，我正在尝试在用户提交登录表单后检查用户的用户名和密码，以使用 PDO 检查它们是否存在于数据库中，但它返回 false。

这是我正在使用的代码：

<?php 
//import all of the available functions
require_once('func/functions.php');

//create a connection to the database
$database = new database('localhost', 'root', 'usbw');
$database->connect();
$database->select('mjbox');

//Check if the user is logged in
loggedin();


//Check if the submit button has been clicked first
if ( isset( $_POST['submit'] ) ){
    //Check if user exists on database
    match_login($_POST['username'],$_POST['password']);
}
?>

//Check if user is logged in
function loggedin(){
    //Check if the loggedin status is set to true, meaning that user is logged in.
    if ( isset ( $_SESSION['loggedin'] ) && $_SESSION['loggedin'] == true  ) {
        echo '<p>Hello '. $_SESSION['username'] . ', <a href="Logout.php">Logout.</a></p>';
    }else{
        //If the user is not logged in display a login form
        echo '<form action="index.php" method="post">';
        echo '<input type="text" name="username">';
        echo '<input type="text" name="password">';
        echo '<input type="submit" name="submit" value="submit">';
        echo '<form>';
    }

}

//Check users login details
function match_login($username, $password){
        //If the button has been clicked get the variables
        $dbh = new PDO("mysql:host=localhost;dbname=mjbox","root", "usbw");
        $stmt = $dbh->prepare("SELECT * FROM mjbox WHERE username=':name' AND password=':pword'");
        $stmt->bindParam(":name", $_POST['username']);
        $stmt->bindParam(":pword", $_POST['password']);
        $stmt->execute();

        if( $stmt->rowCount() > 0 ){

            echo 'There is a match!';
        }else{
            echo 'nooooo';
        }
}

这是我第一次尝试使用 PDO，我用对了吗？所有细节似乎都是正确的，并且用户存在于数据库中，因此无法理解为什么它不返回 true。谢谢

4

1 回答 1

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在 PDO 中绑定字符串会自动为您添加引号。只需删除查询中 :name 和 :pword 周围的引号，就可以修复它。

于 2012-06-02T11:54:25.927 回答