[英]Using sessions to display a users name on website
以下是主頁(index.php)的代碼,位於主頁頂部,我希望用戶能夠登錄,我目前已設置好表單,但我想知道如何在此顯示其他頁面。
這是代碼:
<?php
session_start();
?>
<!DOCTYPE html>
<html>
<head>
<title>Sean Coyne's Food Shop</title>
<link href="style.css" type="text/css" rel="stylesheet"/>
<link rel="icon" type="image/x-icon" href="images/favicon.ico" />
<meta name="description" content="Welcome to Sean Coyne's Food Shop" />
</head>
<body>
<div id="page">
<div id="logo">
<img src="images/logo.jpg" alt="Sean Coyne's Food Shop"
title="Sean Coyne's Food Shop" width="400px" height="70px"/>
<div id="login">
<form action="loggedin.php" method="post">
<label>UserName :</label>
<input id="name" name="username" placeholder="username" type="text">
<label>Password :</label>
<input id="password" name="password" placeholder="**********" type="password">
<input name="submit" type="submit" value=" Login ">
</form>
</div>
</div>
<div id="nav">
<div id="menu">
<ul>
<li><a href="index.php">Home</a></li>
<li><a href="food.php">Food</a></li>
<li><a href="drink.php.html">Drink</a></li>
<li><a href="about.php">About Us</a></li>
<li><a href="findus.php">Where to find us</a></li>
<li><a href="contact.php">Contact Us</a></li>
</ul>
</div>
</div>
<div id="main">
<h1>Welcome to Sean Coyne's Food Shop</h1>
</div>
</div>
</body>
</html>
下面是網站上另一個頁面(loggedin.php)的示例,它仍然是主頁,但是我不希望顯示該表單,而是希望用戶名。 這是代碼:
<?php
session_start();
?>
<!DOCTYPE html>
<html>
<head>
<title>Sean Coyne's Food Shop</title>
<link href="style.css" type="text/css" rel="stylesheet"/>
<link rel="icon" type="image/x-icon" href="images/favicon.ico" />
<meta name="description" content="Welcome to Sean Coyne's Food Shop" />
</head>
<body>
<div id="page">
<div id="logo">
<img src="images/logo.jpg" alt="Sean Coyne's Food Shop"
title="Sean Coyne's Food Shop" width="400px" height="70px"/>
<div id="login">
<?php
echo $_SESSION['username'];
?>
</div>
</div>
<div id="nav">
<div id="menu">
<ul>
<li><a href="index.php">Home</a></li>
<li><a href="food.php">Food</a></li>
<li><a href="drink.php.html">Drink</a></li>
<li><a href="about.php">About Us</a></li>
<li><a href="findus.php">Where to find us</a></li>
<li><a href="contact.php">Contact Us</a></li>
</ul>
</div>
</div>
<div id="main">
<h1>Welcome to Sean Coyne's Food Shop</h1>
</div>
</div>
</body>
</html>
您可以使用條件檢查會話用戶名是否已設置,如果已設置,則可以隱藏登錄表單。 就像是:
<?php if (isset($_SESSION['username']): ?>
<h1>You are logged in!</h1>
<?php else: ?>
<form>
...
</form>
<?php endif; ?>
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