回显一个php文件

当我用正确的信息登录我的网站时，我试图打开我的“index.php”文件，但我不断收到错误

这是我的密码：

<?php
session_start();
include 'dbase.php';

$uid = $_POST['uid'];
$pwd = $_POST['pwd'];

$sql = "SELECT * FROM user WHERE uid = '$uid' AND pwd = '$pwd'";
$result = $conn->query($sql);

if (!$row = mysqli_fetch_assoc($result))
{
    echo "Your username or password is incorrect!";
}
else 
    {
   echo fgets($index);

}

---

在其他条件块中，重定向到索引文件

if (!$row = mysqli_fetch_assoc($result))
{
    echo "Your username or password is incorrect!";
}
else 
    {
   header("location: index.php");
   exit();

}

你也应该考虑使用准备好的语句和PDO。准备好的声明将有助于防止
您的dbase.php将类似于
try {
    $db = new PDO('mysql:host=localhost;dbname=yourDBName', 'username', 'password');
} catch (PDOException $e) {
    echo $e->getMessage();
}

然后是您的实现

include 'dbase.php';

$uid = $_POST['uid'];
$pwd = $_POST['pwd'];

$sql = "SELECT * FROM `user` WHERE `uid` = :uid AND `pwd` = :pwd";
$statement = $db->prepare($sql);
$userData = [
    'uid'=>$uid,
    'pwd'=>$pwd
];

$statement->execute($userData);

if($statement->rowCount() > 0){
    header('Location: index.php');
    exit();
}else{
    echo "Your username or password is wrong!";
}

也许可以分享你的错误？