Question

我使用facebook SDK“登录Facebook”我使用以下代码。我有2个网站，一个是SSL证书，一个是非SSL证书。两者都有不同的托管服务商现在问题是当我在非ssl网站上使用这个代码时，它工作得很完美（我还有两个facebook应用程序）。但是当我在网站上使用ssl证书时。它给出了以下错误：

致命错误：消息'DateTime :: __ construct（）的未捕获异常'异常'：依赖系统的时区设置是不安全的。您必需使用date.timezone设置或date_default_timezone_set（）函数。如果您使用了这些方法中的任何一种并且仍然收到此警告，则很可能拼错了时区标识符。我们现在选择了时区'UTC'，但请设置date.timezone来选择您的时区。在/home/mediahyp/public_html/facebook/src/Facebook/Authentication/AccessToken.php:156堆栈跟踪：＃0 /home/mediahyp/public_html/facebook/src/Facebook/Authentication/AccessToken.php(156）：DateTime- ＆gt; __ construct（）＃1 /home/mediahyp/public_html/facebook/src/Facebook/Authentication/AccessToken.php(57）：Facebook \ Authentication \ AccessToken-＆gt; setExpiresAtFromTimeStamp（1453623903）＃2 / home / mediahyp / public_html / facebook / src / Facebook / Authentication / OAuth2Client.php（247）：Facebook \ Authentication \ AccessToken-＆gt; __ construct（'CAALR8BH5vloBAP ...'，1453623903）＃3 / home / mediahyp / public_ in / home / mediahyp / public_html /第156行的facebook / src / Facebook / Authentication / AccessToken.php

以下是我正在使用的代码：

<?php
session_start();
require_once __DIR__ . '/src/Facebook/autoload.php';
$fb = new Facebook\Facebook([
  'app_id' => 'app_id',
  'app_secret' => 'app_secret',
  'default_graph_version' => 'v2.4',
  ]);
$helper = $fb->getRedirectLoginHelper();
$permissions = ['email']; // optional

try {
    if (isset($_SESSION['facebook_access_token'])) {
        $accessToken = $_SESSION['facebook_access_token'];
    } else {
        $accessToken = $helper->getAccessToken();
    }
} catch(Facebook\Exceptions\FacebookResponseException $e) {
    // When Graph returns an error
    echo 'Graph returned an error: ' . $e->getMessage();
    exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
    // When validation fails or other local issues
    echo 'Facebook SDK returned an error: ' . $e->getMessage();
    exit;
 }
if (isset($accessToken)) {
    if (isset($_SESSION['facebook_access_token'])) {
        $fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
    } else {
        // getting short-lived access token
        $_SESSION['facebook_access_token'] = (string) $accessToken;
        // OAuth 2.0 client handler
        $oAuth2Client = $fb->getOAuth2Client();
        // Exchanges a short-lived access token for a long-lived one
        $longLivedAccessToken = $oAuth2Client->getLongLivedAccessToken($_SESSION['facebook_access_token']);
        $_SESSION['facebook_access_token'] = (string) $longLivedAccessToken;
        // setting default access token to be used in script
        $fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
    }
    // redirect the user back to the same page if it has "code" GET variable
    if (isset($_GET['code'])) {
        header('Location: ./');
    }
    // getting basic info about user
    try {
        $response = $fb->get('/me?fields=name,first_name,last_name,email, gender,relationship_status');
        $profile = $response->getGraphUser();
    } catch(Facebook\Exceptions\FacebookResponseException $e) {
        // When Graph returns an error
        echo 'Graph returned an error: ' . $e->getMessage();
        session_destroy();
        // redirecting user back to app login page
        header("Location: ./");
        exit;
    } catch(Facebook\Exceptions\FacebookSDKException $e) {
        // When validation fails or other local issues
        echo 'Facebook SDK returned an error: ' . $e->getMessage();
        exit;
    }

    // printing $profile array on the screen which holds the basic info about user


    echo $profile->getName();
    echo "<br>";
    echo $profile->getEmail();
    echo "<br>";
    echo $profile->getID();
    echo "<br>";
    echo $profile->getGender();
    echo "<br>";
    echo $profile->getrelationship_status();


    // Now you can redirect to another page and use the access token from $_SESSION['facebook_access_token']
} else {
    // replace your website URL same as added in the developers.facebook.com/apps e.g. if you used http instead of https and you used non-www version or www version of your website then you must add the same here
    $loginUrl = $helper->getLoginUrl('https://www.website.com/', $permissions);
    echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>';
}

?>

Answer 1

您遇到此问题的托管服务提供商上的PHP安装可能没有在php.ini中设置默认时区。

您可以在脚本顶部定义它：

date_default_timezone_set('UTC');

Facebook SDK：消息'DateTime :: __ construct（）

1 个答案: