将数据保存到服务器后如何登录？

Question

I'm learning php and mysql and i'm making fake login site. -for learning purpose-

    <?php
$id = $_POST[mb_id];
$password = $_POST[mb_password];
// Create connection
 $conn = mysqli_connect(localhost, u982680175_root, temp, u982680175_test);
 // Check connection
 if (!$conn) {
     die("Connection failed: " . mysqli_connect_error());
}

$sql = "INSERT INTO student (id, password)
 values ('$id', '$password')";

if (mysqli_query($conn, $sql)) {
    header("Location: http://www.dtg.hs.kr/");
exit();

} else {
    echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}

mysqli_close($conn);
?> 

i sucess saving data in to my server and redirected to realhomepage. but i want to redirect to logined real site after saving database. how can i call real php and give data? this is the real login page: http://www.dtg.hs.kr/sys/bbs/login.php

Answer 1

Short answer...

After the data from the user being created is inserted into the database you will need to have the script create some sort of $_SESSION[] variable that uniquely identifies the user.

Here is the PHP documentation related to SESSIONs http://php.net/manual/en/book.session.php

When the redirect occurs there will be a check to see if the $_SESSION variable is set or not. If the $_SESSION variable is set, then do a check to see if the $_SESSION variable is valid.

In then you will be able to show different data based on the validated $_SESSION or if no $_SESSION is set.

Hope this helps!