我在使用Facebook SDK时遇到了一些麻烦,特别是在获取访问令牌时.该应用已在Facebook上正确设置,并已获得许可.据我所知,代码是正确的,而且我不确定getAccesstoken()出了什么问题.
$facebook-> getAccesstoken();返回“ 12345678 | abcdefghijklmnop”,基本上是某种变量,由应用程序ID和秘密ID组成,中间用|分隔.
$facebook-> getUser();返回“ 0”
<?PHP
require_once("facebook.PHP"); //Up-to-date SDK files from Git
$app_id = "12345678"; //replaced with fake
$app_secret = "abcdefghijklmnop"; //replaced with fake
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true; //I have tried 'false' here as well
));
$token = $facebook->getAccesstoken();
?>
先感谢您!
解决方法:
从Facebook SDK:
public function getAccesstoken() {
if ($this->accesstoken !== null) {
return $this->accesstoken;
}
$this->setAccesstoken($this->getApplicationAccesstoken());
$user_access_token = $this->getUserAccesstoken();
if ($user_access_token) {
$this->setAccesstoken($user_access_token);
}
return $this->accesstoken;
}
protected function getApplicationAccesstoken() {
return $this->appId.'|'.$this->appSecret;
}
当您进行用户签名时,您的访问令牌将是APP ID | APP SECRET(这是应用程序令牌),或者是A RANDOM TOKEN HERE(这是用户访问令牌).
$facebook->getUser();
当getUser()返回0(与false相同,并且用户未签名)时,您需要为应用程序请求登录名和授权(如果尚未授权):
if (!$facebook->getUser())
{
$login_url = $facebook->getLoginUrl(array(
'scope' => 'publish_stream' // Permissions goes here
)
);
?>
<script type="text/javascript">
top.location.href = " <?PHP echo $login_url; ?>";
</script>
<?PHP
exit;
}
在此处查看可用的权限类型:https://developers.facebook.com/docs/authentication/permissions/