Home  >  Article  >  Backend Development  >  php verify login

php verify login

藏色散人
藏色散人Original
2019-09-17 10:34:572923browse

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;]; 
    } 
} 
?>

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>

Recommended tutorial: PHP tutorial

The above is the detailed content of php verify login. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn