本文整理汇总了PHP中Facebook::require_add方法的典型用法代码示例。如果您正苦于以下问题：PHP Facebook::require_add方法的具体用法？PHP Facebook::require_add怎么用？PHP Facebook::require_add使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Facebook的用法示例。
在下文中一共展示了Facebook::require_add方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: Facebook
<?php
include_once '../lib/client/facebook.php';
include_once '../lib/AppConfig.class.php';
include_once '../lib/HelloWorld.class.php';
// Create a new Facebook client object
$facebook = new Facebook(AppConfig::$api_key, AppConfig::$secret);
// Prevent this page from being viewed outside the context of app.facebook.com/appname/
$facebook->require_frame();
// Prevent this page from being viewed without a valid logged in user
// -- NOTE: This does not mean that the logged in user has added the application
$user = $facebook->require_login();
// Require the viewing user to have added the application.
$facebook->require_add();
$app = new HelloWorld($facebook);
// Create a var to represent the target user, default it to null
$target_user = null;
if (isset($_POST['friend_sel'])) {
// If the friend_sel var is set in the POST vars, typecast it to an
// integer and set the target_user
$target_user = (int) $_POST['friend_sel'];
}
// By default we show the form, and the action_wave and wave_success are
// set to false.
$wave_success = false;
$action_wave = false;
$show_form = true;
if ($target_user) {
$action_wave = true;
$show_form = false;
// The target_user is set, send them a greeting