PHP前端控制器流量混亂 - 交換語句只測試過一次

我是新來的php和混淆這個流程。在我看來，當$ action變量獲得一個新值時，switch（$ action）需要被多次評估。但我沒有看到開關（$行動）正在評估，但只有一次。我以admin_menu.php爲例。如果用戶從admin_menu.php中選擇<p><a href="index.php?action=show_product_manager">Product Manager</a></p>，該怎麼辦？我沒有看到後面調用了index.php，所以我沒有看到自從switch（$ action）已經運行以來，新的值將被測試。PHP前端控制器流量混亂 - 交換語句只測試過一次

localhost ch21_ex2 # cat index.php 
<?php 
// Start session management and include necessary functions 
session_start(); 
require_once('model/database.php'); 
require_once('model/admin_db.php'); 

// Get the action to perform 
if (isset($_POST['action'])) { 
    $action = $_POST['action']; 
} else if (isset($_GET['action'])) { 
    $action = $_GET['action']; 
} else { 
    $action = 'show_admin_menu'; 
} 

// If the user isn't logged in, force the user to login 
if (!isset($_SESSION['is_valid_admin'])) { 
    $action = 'login'; 
} 

// Perform the specified action 
switch($action) { 
    case 'login': 
     $email = $_POST['email']; 
     $password = $_POST['password']; 
     if (is_valid_admin_login($email, $password)) { 
      $_SESSION['is_valid_admin'] = true; 
      include('view/admin_menu.php'); 
     } else { 
      $login_message = 'You must login to view this page.'; 
      include('view/login.php'); 
     } 
     break; 
    case 'show_admin_menu': 
     include('view/admin_menu.php'); 
     break; 
    case 'show_product_manager': 
     include('view/product_manager.php'); 
     break; 
    case 'show_order_manager': 
     include('view/order_manager.php'); 
     break; 
    case 'logout': 
     $_SESSION = array(); // Clear all session data from memory 
     session_destroy();  // Clean up the session ID 
     $login_message = 'You have been logged out.'; 
     include('view/login.php'); 
     break; 
} 
?>localhost ch21_ex2 # firefox 'view/admin_menu.php' 
localhost ch21_ex2 # cat 'view/admin_menu.php' 
<?php 
    require_once('util/secure_conn.php'); // require a secure connection 
    require_once('util/valid_admin.php'); // require a valid admin user 
?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
    <head> 
     <title>My Guitar Shop</title> 
     <link rel="stylesheet" type="text/css" href="main.css"/> 
    </head> 
    <body> 
     <div id="page"> 
      <div id="header"> 
       <h1>My Guitar Shop</h1> 
      </div> 
      <div id="main"> 
       <h1>Admin Menu</h1> 
       <p><a href="index.php?action=show_product_manager">Product Manager</a></p> 
       <p><a href="index.php?action=show_order_manager">Order Manager</a></p> 
       <p><a href="index.php?action=logout">Logout</a></p> 

      </div><!-- end main --> 
     </div><!-- end page --> 
    </body> 
</html>

來源

2012-10-26 dman

也許有些問題require_once（'UTIL/secure_conn.php 「）; require_once（'util/valid_admin.php'）;這是觸發你的index.php –

我剛纔看到答案.... index.php文件正在與再次呼籲：行動的index.php = show_order_manager在<p><a href="index.php?action=show_order_manager">Order Manager</a></p>

來源

2012-10-26 05:44:04 dman

PHP前端控制器流量混亂 - 交換語句只測試過一次

回答

相關問題