[英]Facebook SDK PHP 5.0 getLoginUrl() Error 500
I am trying to use the examples provided under Facebook PHP SDK 5.0 to login to Facebook. 我正在尝试使用Facebook PHP SDK 5.0下提供的示例登录Facebook。 I am getting back 500 Internal Server Error.
我收到500内部服务器错误。 I am using the Baby Plan from HostGator which is running Php 5.5.27 PHP INFO .
我正在使用HostGator的婴儿计划,该计划运行PHP 5.5.27 PHP INFO 。 Is there configuration I would need to add to my server to get things working?
是否有配置我需要添加到我的服务器以使工作正常?
login.php 的login.php
<?php
session_start();
// Include the required dependencies.
require_once( 'vendor/autoload.php' );
// Initialize the Facebook PHP SDK v5.
$fb = new Facebook\Facebook([
'app_id' => '495994870548274',
'app_secret' => '593f18b375c9e23d34b9794136cf7158',
'default_graph_version' => 'v2.3',
]);
$helper = $fb->getRedirectLoginHelper();
$permissions = ['email']; // Optional permissions
$loginUrl = $helper->getLoginUrl('http://techcomsgb.com/kidneytest/login-callback.php', $permissions);
echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>'
login-callback.php 登录-callback.php
<?php
session_start();
// Include the required dependencies.
require_once( 'vendor/autoload.php' );
// Initialize the Facebook PHP SDK v5.
$fb = new Facebook\Facebook([
'app_id' => '495994870548274',
'app_secret' => '593f18b375c9e23d34b9794136cf7158',
'default_graph_version' => 'v2.3',
]);
$helper = $fb->getRedirectLoginHelper();
try {
$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 ($helper->getError()) {
header('HTTP/1.0 401 Unauthorized');
echo "Error: " . $helper->getError() . "\n";
echo "Error Code: " . $helper->getErrorCode() . "\n";
echo "Error Reason: " . $helper->getErrorReason() . "\n";
echo "Error Description: " . $helper->getErrorDescription() . "\n";
} else {
header('HTTP/1.0 400 Bad Request');
echo 'Bad request';
}
exit;
}
// Logged in
echo '<h3>Access Token</h3>';
var_dump($accessToken->getValue());
// The OAuth 2.0 client handler helps us manage access tokens
$oAuth2Client = $fb->getOAuth2Client();
// Get the access token metadata from /debug_token
$tokenMetadata = $oAuth2Client->debugToken($accessToken);
echo '<h3>Metadata</h3>';
var_dump($tokenMetadata);
// Validation (these will throw FacebookSDKException's when they fail)
$tokenMetadata->validateAppId($config['app_id']);
// If you know the user ID this access token belongs to, you can validate it here
//$tokenMetadata->validateUserId('123');
$tokenMetadata->validateExpiration();
if (! $accessToken->isLongLived()) {
// Exchanges a short-lived access token for a long-lived one
try {
$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
} catch (Facebook\Exceptions\FacebookSDKException $e) {
echo "<p>Error getting long-lived access token: " . $helper- >getMessage() . "</p>\n\n";
exit;
}
echo '<h3>Long-lived</h3>';
var_dump($accessToken->getValue());
}
$_SESSION['fb_access_token'] = (string) $accessToken;
// User is logged in with a long-lived access token.
// You can redirect them to a members-only page. //您可以将它们重定向到仅限会员的页面。 //header('Location: https://example.com/members.php ');
// header('Location: https : //example.com/members.php ');
I had this error too. 我也有这个错误。 Most of the things was in the hosting side .
大多数事情都在托管方面 。 I fixed by doing some things.
我做了一些事情。
MBString Values Sample Image MBString值示例图像
See more: https://benmarshall.me/facebook-php-sdk/#requirements 查看更多: https : //benmarshall.me/facebook-php-sdk/#requirements
Then, in the callback.php Facebook Exceptions wasn't working so I change it to the PHP Exception Method like this: 然后,在callback.php Facebook Exceptions无效,所以我将其更改为PHP异常方法,如下所示:
try {
$accessToken = $helper->getAccessToken();
} catch(Exception $e) {
// There was an error communicating with Graph
echo $e->getMessage();
exit;
}
Then I get the error message. 然后我收到错误消息。 It was the date.timezone, I added in the php.ini file and now everything is working.
这是date.timezone,我在php.ini文件中添加了,现在一切正常。
[date] date.timezone = "America/Los_Angeles"
简单错误,login-callback.php上的文件权限不正确
It's because you forgot to place an app-id
in this section: 这是因为您忘记在此部分中放置
app-id
:
// Validation (these will throw FacebookSDKException's when they fail)
$tokenMetadata->validateAppId({app-id}); // Replace {app-id} with
// your app id
// If you know the user ID this access token belongs to, you can validate
// it here
//$tokenMetadata->validateUserId('123');
$tokenMetadata->validateExpiration();
Replace the {app-id}
with your ID and then it should work. 将
{app-id}
替换为您的ID,然后它应该有效。 I'm surprised no one on Facebook pointed this out. 我很惊讶Facebook上没有人指出这一点。
For me it was the link returned by $helper->getLoginUrl()
, so I just replaced https://www.facebook.com/v2.8/dialog/oauth with https://graph.facebook.com/oauth/authorize . 对我来说,这是
$helper->getLoginUrl()
返回的链接,所以我只用https://graph.facebook.com/oauth/替换了https://www.facebook.com/v2.8/dialog/oauth授权 。
$login_url = $login_helper->getLoginUrl('www.yoururl.com/fb-callback.php'), $permissions);
$login_url = str_replace('https://www.facebook.com/v2.8/dialog/oauth?', 'https://graph.facebook.com/oauth/authorize?', $login_url);
Look at this post for reference Facebook oauth authorize URL and parameter options 请看这篇文章以供参考Facebook oauth授权URL和参数选项
"when you want to build the login flow manually you should use /oauth/authorize.. else if you are using javascript/Apps api provided by facbook it uses /dialog/oauth" “当你想手动构建登录流程时,你应该使用/ oauth / authorize .. else如果你正在使用它使用/ dialog / oauth的facbook提供的javascript / Apps api”
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