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php verify login

藏色散人
Release： 2023-02-24 09:08:02
Original
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php verify login

#php Verify login?

php Determine whether the user is logged in

The following example uses Session to determine whether the user is logged in:

functions.php

<?php 
function loggedIn(){ 
    //通过 $_SESSION  来判断用户是否登录
    if(!$_SESSION[&#39;loggd&#39;]){ 
        echo&#39;<form action="checkLogin.php" method="post"> 
        <p> 
            Username:<br> 
            <input type="text" name="username"> 
        </p> 
        <p> 
            Password:<br> 
            <input type="password" name="username"> 
        </p> 
        <p> 
            <input type="submit" name="submit" value="Log In"> 
        </p> 
        </form>&#39;; 
    }else{  // 登录显示欢迎页面
        echo &#39;Welcome, &#39;.$_SESSION[&#39;username&#39;]; 
    } 
} 
?>
Copy after login

index.php

<?php 
//Start the session 
session_start(); 
//This is a simplified HTML Document 
?> 
<html>
<head>
<title>My Page</title>
</head>
<body>
     <?php 
    // 引入 functions.php 文件
    require_once("functions.php"); 
    //登录状态显示用户名，未登录显示登录表单
    logedIn(); 
    ?> 
</body>
</html>
Copy after login

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