How to hide parameters in php address bar

How to hide parameters in the php address bar: first save the uid into the session after the user logs in; then give the user the session ID; finally, determine and display the currently logged in user information in "userinfo.php".

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Question:

The page I made with PHP, if you click on a user to view the user information, the following will appear on the URL bar: http://www.abc.com/index.php?user_id=39. You can view other users by modifying the number. .

Solution:

//首先，你得在用户登录后把uid存到session里,比如在login.php中
$_SESSION['uid'] = XXX //XXX为用户登录时给他的sessionID（和user表的uid值相同）
 
//比如在userinfo.php中
if($_SESSION['uid'] == intval($_GET['user_id'])){
    //显示当前登录用户信息
}else{
    //可以显示别的用户的信息（用$_SESSION['uid']查询user表的uid，并根据需要展示信息）
    //也可以直接给出error信息，告诉他不能查看该用户的信息
}

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