Question

下面的代码确保当用户访问控制面板时，他们会通过快速验证过程来验证其实体是什么。例如，如果用户为1级，则只能访问视频源，这意味着他们无法使用其他任何内容。

当我查看代码时，我可以看到在调用案例1和3时调用视频源。我可能会喜欢另一种方法来提高代码效率。

有人告诉我，一个可能的阵列可以让事情变得更容易，但是再次这样会更快。

    switch ($_SESSION['permission']) {
        case 1: // Level 1: Video Feed
            include ("include/panels/videofeed.index.php");
            break;
        case 2: // Level 2: Announcements / Courses / Teachers
            include ("include/panels/announcements.index.php");
            include ("include/panels/courses.index.php");
            include ("include/panels/teachers.index.php");
            break;
        case 3: // Level 3: Announcements / Video Feed / Courses / Teachers / Accounts / Logs
            include ("include/panels/announcements.index.php");
            include ("include/panels/videofeed.index.php"); 
            include ("include/panels/courses.index.php");
            include ("include/panels/teachers.index.php");
            include ("include/panels/accounts.index.php");
            include ("include/panels/log.index.php");       
            break;
        case 4: // Level 4: Teachers
            include ("include/panels/teachers.index.php");          
    }

Answer 1

它的方式很好。当你提到“重复”包括时，我认为你并不是指“效率”。您的意思是您可以使用切换功能来压缩代码。

虽然这可能会使您的代码变小，但它对效率（脚本运行的时间）没有显着影响，并且实际上会使代码更难以阅读。保持原状。

Answer 2

如果你可以使用require_once，你可以运行更好。第二点是缩短网址似乎它的每一个都包含相同。

也许尝试在函数中使用它，例如：

$permission_id = $_SESSION['permission']

function requireModule($moduleName, $path = 'include/panels/') {
    $moduleName .= '.index.php';
    require_once($path . $moduleName);
}

// if you want you can add an arry for it:

$permissionModules = array(
    array('videofeed'),
    array('announcements', 'courses', 'teachers'),
    array('announcements', 'courses', 'teachers', 'accounts', 'log', 'videofeed'),
    array('teachers')
);

// now we can put it in a more effectiv way

if(array_key_exists($permission_id, $permissionModules)) {
    foreach($permissionModules[$permission_id] as $includes) {
        requireModule($includes);
    }
}

错了吗？纠正我！

PHP Case开关（效率）

2 个答案: