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File: login_with_facebook.php

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  Classes of Manuel Lemos  >  PHP OAuth API  >  login_with_facebook.php  >  Download  
File: login_with_facebook.php
Role: Example script
Content type: text/plain
Description: Example of logging in with Facebook using OAuth
Class: PHP OAuth API
Authorize and access APIs using OAuth
Author: By
Last change: Added more examples of API calls compliant with Graph API v2.3.
Date: 10 days ago
Size: 3,594 bytes
 

Contents

Class file image Download
<?php
/*
 * login_with_facebook.php
 *
 * @(#) $Id: login_with_facebook.php,v 1.4 2015/04/08 23:28:52 mlemos Exp $
 *
 */

    /*
     * Get the http.php file from http://www.phpclasses.org/httpclient
     */
   
require('http.php');
    require(
'oauth_client.php');

   
$client = new oauth_client_class;
   
$client->debug = false;
   
$client->debug_http = true;
   
$client->server = 'Facebook';
   
$client->redirect_uri = 'http://'.$_SERVER['HTTP_HOST'].
       
dirname(strtok($_SERVER['REQUEST_URI'],'?')).'/login_with_facebook.php';

   
$client->client_id = ''; $application_line = __LINE__;
   
$client->client_secret = '';

    if(
strlen($client->client_id) == 0
   
|| strlen($client->client_secret) == 0)
        die(
'Please go to Facebook Apps page https://developers.facebook.com/apps , '.
           
'create an application, and in the line '.$application_line.
           
' set the client_id to App ID/API Key and client_secret with App Secret');

   
/* API permissions
     */
   
$client->scope = 'email,publish_actions,user_friends';
    if((
$success = $client->Initialize()))
    {
        if((
$success = $client->Process()))
        {
            if(
strlen($client->access_token))
            {
               
$success = $client->CallAPI(
                   
'https://graph.facebook.com/v2.3/me',
                   
'GET', array(), array('FailOnAccessError'=>true), $user);
/*
                if($success)
                {
                    // Get Friends that use the same application

                    $success = $client->CallAPI(
                        'https://graph.facebook.com/v2.3/me/friends',
                        'GET', array(), array('FailOnAccessError'=>true), $friends);
                }
*/
               
if($success)
                {
                   
// Requires publish_actions permissions and your application needs to be submitted for review
                   
$values = array(
                       
// You can no longer pre-fill the user message
                       
'message'=>'',
                       
'link'=>'http://www.phpclasses.org/package/7700-PHP-Authorize-and-access-APIs-using-OAuth.html',
                       
// The name of the post can be retrieved from the page title
                        //'name' => 'This is the title',
                        // the description of the post can be retrieved from the page meta description
                       
'description'=>'This post was submitted using this PHP OAuth API client class.',
                       
'picture' => 'http://files.phpclasses.org/files/blog/package/7700/file/PHP%2BOAuth.png'
                   
);
                   
$success = $client->CallAPI(
                       
'https://graph.facebook.com/v2.3/me/feed',
                       
'POST', $values, array('FailOnAccessError'=>true), $post);
                }

/*
                if($success)
                {
                    // Post photos in your time line

                    $success = $client->CallAPI(
                        "https://graph.facebook.com/me/photos",
                        'POST', array(
                            'message'=>'This is a test to post photos in Facebook time line using this the PHP OAuth API class: http://www.phpclasses.org/oauth-api',
                            'source'=>'picture.jpg'
                        ),
                        array(
                            'FailOnAccessError'=>true,
                            'Files'=>array(
                                'source'=>array(
                        )
                    )
                ), $upload);
                }
*/
           
}
        }
       
$success = $client->Finalize($success);
    }
    if(
$client->exit)
        exit;
    if(
$success)
    {
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Facebook OAuth client results</title>
</head>
<body>
<?php
       
echo '<h1>', HtmlSpecialChars($user->name),
           
' you have logged in successfully with Facebook!</h1>';
        echo
'<pre>', HtmlSpecialChars(print_r($user, 1)), '</pre>';
        echo
'<pre>', HtmlSpecialChars(print_r($post, 1)), '</pre>';
?>
</body>
</html>
<?php
   
}
    else
    {
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>OAuth client error</title>
</head>
<body>
<h1>OAuth client error</h1>
<pre>Error: <?php echo HtmlSpecialChars($client->error); ?></pre>
</body>
</html>
<?php
   
}

?>