douqiang6448
douqiang6448
2019-03-26 16:43

如何通过创建SESSION创建一个使用PHP,MYSQL和HTML的登录系统[关闭]

I need to create a login system, where once logged in, depending on the user type, users will be able to access certain pages. I also need to ensure that these users are able to logout of their accounts. I will be using a phpmyadmin database to store the user data, and their user type.

I have attempted to create this, however my current code does not work at all. Despite the users having a record in phpmyadmin, and with a defined user type; I am unable to login using their details. Instead I am presented with an error message, stating that the account cannot be located. I understand that the best way resolve this issue, is to implement a SESSION into my code, so users are not only able to login but their user type is remembered throughout their session.

How can I implement a SESSION into my code? Does anyone have any advice? Also I'm new to slack- please let me know if you have any questions on the above. Thanks

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1条回答

  • doufan1899 doufan1899 2年前

    For using SESSION stuff you need to start every page.php by:

    <?php session_start(); ?>
    

    After what, you can cast some $_SESSION variable like:

    $_SESSION['name'] = 'Alex';
    $_SESSION['online'] = TRUE;
    

    So you could use it :

    <?php
       if($_SESSION['online']){ echo 'You are online';}
    ?>
    

    And to disconnect someone from the sessions

    <?php session_start();
      $_SESSION = array(); //to delete every $_SESSION variables
      session_destroy();
    ?>
    

    For the rest of your ask, it's way too long to explain it there. You should follow some tutorial.

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