[英]How do I determine if there is an active facebook access token?
I am using the PHP Facebook 3.0 SDK for the graph API and want a simple way to find out if there is currently an active token so that I can handle errors gracefully. 我正在使用用于图形API的PHP Facebook 3.0 SDK,并希望有一种简单的方法来找出当前是否有活动令牌,以便我可以优雅地处理错误。
getUserAccessToken()
is a protected method and so I can't seem to access it with the facebook object. getUserAccessToken()
是一个受保护的方法,因此我似乎无法通过facebook对象访问它。 There has to be a simple way to do 必须有一个简单的方法
if(active token){ do stuff} else{ don't}
Help anyone? 帮助任何人?
The Facebook PHP SDK Example has all the code you need for this: Facebook PHP SDK示例包含您需要的所有代码:
<?php
require '../src/facebook.php';
$facebook = new Facebook(array(
'appId' => '',
'secret' => '',
));
$user = $facebook->getUser();
if ($user) {
try {
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
?>
Maybe you can use this type of code: 也许您可以使用以下类型的代码:
$data=file_get_contents('https://graph.facebook.com/me?access_token=xxx');
foreach ($http_response_header as $rh) if (substr($rh, 0, 4)=='HTTP') list(,$status,)=explode(' ', $rh, 3);
if ($status==200 && $data)
//Token is good, parse data
else
//Token is no good
Try this: 尝试这个:
try {
$User = $Facebook->api('/me');
} catch(Exception $e) {
echo 'No active token.';
echo $e->getMessage();
}
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