Facebook is the new Web planet, nowadays it’s a part of human life. Facebook offering user data access via Graph API. This is very helpful for start-up web projects to quickly collecting people data. This post explains you how to request Facebook login, permissions,reading user data and updating Wall using Facebook SDK. Tutorial contains multiple demos try all these Thanks!.
The tutorial contains lib directory contains facebook sdk and database config files with PHP files.
lib
-- facebook.php //Facebook SDK
-- base_facebook.php
-- fbconfig.php //Facebook Application configuration
-- db.php //Database connection
fblogin.php
home.php
status_update.php
-- facebook.php //Facebook SDK
-- base_facebook.php
-- fbconfig.php //Facebook Application configuration
-- db.php //Database connection
fblogin.php
home.php
status_update.php
Database
Sample database users table columns id,facebook_id, name, email etc..
CREATE TABLE users
(
id INT PRIMARY KEY AUTO_INCREMENT,
facebook_id INT(20),
name VARCHAR(200),
email VARCHAR(200),
gender VARCHAR(10),
birthday DATE,
location VARCHAR(200),
hometown VARCHAR(200),
bio TEXT,
relationship VARCHAR(30),
timezone VARCHAR(10),
access_token TEXT
);
(
id INT PRIMARY KEY AUTO_INCREMENT,
facebook_id INT(20),
name VARCHAR(200),
email VARCHAR(200),
gender VARCHAR(10),
birthday DATE,
location VARCHAR(200),
hometown VARCHAR(200),
bio TEXT,
relationship VARCHAR(30),
timezone VARCHAR(10),
access_token TEXT
);
Facebook Application
You have to create a application. Facebook will provide you app id and app secret id, just replace in the following code. fbconfig.php
<?php
$facebook_appid='App ID';
$facebook_app_secret='App Secret';
$facebook = new Facebook(array(
'appId' => $facebook_appid,
'secret' => $facebook_app_secret,
));
?>
$facebook_appid='App ID';
$facebook_app_secret='App Secret';
$facebook = new Facebook(array(
'appId' => $facebook_appid,
'secret' => $facebook_app_secret,
));
?>
fblogin.php
Facebook log in request for user details. Just a take a look at the scope, here requesting email and birthday. Storing $userdata value into session $_SESSION['userdata']
<?php
require 'lib/db.php';
require 'lib/facebook.php';
require 'lib/fbconfig.php';
$user = $facebook->getUser();
if ($user)
{
$logoutUrl = $facebook->getLogoutUrl();
try
{
$userdata = $facebook->api('/me');
}
catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
$_SESSION['facebook']=$_SESSION;
$_SESSION['userdata'] = $userdata;
$_SESSION['logout'] = $logoutUrl;
//Redirecting to home.php
header("Location: home.php");
}
else
{
$loginUrl = $facebook->getLoginUrl(array(
'scope' => 'email,user_birthday'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
}
?>
require 'lib/db.php';
require 'lib/facebook.php';
require 'lib/fbconfig.php';
$user = $facebook->getUser();
if ($user)
{
$logoutUrl = $facebook->getLogoutUrl();
try
{
$userdata = $facebook->api('/me');
}
catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
$_SESSION['facebook']=$_SESSION;
$_SESSION['userdata'] = $userdata;
$_SESSION['logout'] = $logoutUrl;
//Redirecting to home.php
header("Location: home.php");
}
else
{
$loginUrl = $facebook->getLoginUrl(array(
'scope' => 'email,user_birthday'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
}
?>
Basic User Information Demo
Download Script 
Live Demo
home.php
Parsing Facebook user details $userdata array values and inserting into users table.
<?php
require 'lib/db.php';
require 'lib/facebook.php';
require 'lib/fbconfig.php';
session_start();
$facebook=$_SESSION['facebook'];
$userdata=$_SESSION['userdata'];
$logoutUrl=$_SESSION['logout'];
//Facebook Access Token
$access_token_title='fb_'.$facebook_appid.'_access_token';
$access_token=$facebook[$access_token_title];
if(!empty($userdata))
{
$facebook_id=$userdata['id'];
$name=$userdata['name'];
$first_name=$userdata['first_name'];
$last_name=$userdata['last_name'];
$email=$userdata['email'];
$gender=$userdata['gender'];
$birthday=$userdata['birthday'];
$location=mysql_real_escape_string($userdata['location']['name']);
$hometown=mysql_real_escape_string($userdata['hometown']['name']);
$bio=mysql_real_escape_string($userdata['bio']);
$relationship=$userdata['relationship_status'];
$timezone=$userdata['timezone'];
mysql_query("INSERT INTO `users` (`facebook_id`, `name`, `email`, `gender`, `birthday`, `location`, `hometown`, `bio`, `relationship`, `timezone`, `access_token`)
VALUES('$facebook_id','$name','$email','$gender','$birthday','$location','$hometown','$bio','$relationship','$timezone','$access_token')";
// Update or Post Facebook wall.
include('status_update.php');
}
else
{
header("Location: fblogin.php");
}
?>
require 'lib/db.php';
require 'lib/facebook.php';
require 'lib/fbconfig.php';
session_start();
$facebook=$_SESSION['facebook'];
$userdata=$_SESSION['userdata'];
$logoutUrl=$_SESSION['logout'];
//Facebook Access Token
$access_token_title='fb_'.$facebook_appid.'_access_token';
$access_token=$facebook[$access_token_title];
if(!empty($userdata))
{
$facebook_id=$userdata['id'];
$name=$userdata['name'];
$first_name=$userdata['first_name'];
$last_name=$userdata['last_name'];
$email=$userdata['email'];
$gender=$userdata['gender'];
$birthday=$userdata['birthday'];
$location=mysql_real_escape_string($userdata['location']['name']);
$hometown=mysql_real_escape_string($userdata['hometown']['name']);
$bio=mysql_real_escape_string($userdata['bio']);
$relationship=$userdata['relationship_status'];
$timezone=$userdata['timezone'];
mysql_query("INSERT INTO `users` (`facebook_id`, `name`, `email`, `gender`, `birthday`, `location`, `hometown`, `bio`, `relationship`, `timezone`, `access_token`)
VALUES('$facebook_id','$name','$email','$gender','$birthday','$location','$hometown','$bio','$relationship','$timezone','$access_token')";
// Update or Post Facebook wall.
include('status_update.php');
}
else
{
header("Location: fblogin.php");
}
?>
status_update.php
Update Facebook Wall using access_token via Graph API. Log in scope should be status_update take a look at the Post to my Wall code.
<?php
if($_SERVER["REQUEST_METHOD"] == "POST")
{
$status=$_POST['status'];
$facebook_id=$userdata['id'];
$params = array('access_token'=>$access_token, 'message'=>$status);
$url = "https://graph.facebook.com/$facebook_id/feed";
$ch = curl_init();
curl_setopt_array($ch, array(
CURLOPT_URL => $url,
CURLOPT_POSTFIELDS => $params,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_VERBOSE => true
));
$result = curl_exec($ch);
echo "Message Updated";
}
?>
//HTML Code
<form method="post" action="">
<textarea name="status"></textarea> <br/>
<input type="submit" value=" Update "/>
</form>
if($_SERVER["REQUEST_METHOD"] == "POST")
{
$status=$_POST['status'];
$facebook_id=$userdata['id'];
$params = array('access_token'=>$access_token, 'message'=>$status);
$url = "https://graph.facebook.com/$facebook_id/feed";
$ch = curl_init();
curl_setopt_array($ch, array(
CURLOPT_URL => $url,
CURLOPT_POSTFIELDS => $params,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_VERBOSE => true
));
$result = curl_exec($ch);
echo "Message Updated";
}
?>
//HTML Code
<form method="post" action="">
<textarea name="status"></textarea> <br/>
<input type="submit" value=" Update "/>
</form>
Post to my Wall
Facebook log in scope for updating Facebook wall.
$loginUrl = $facebook->getLoginUrl(
array(
'scope' => 'email,user_birthday,status_update'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
array(
'scope' => 'email,user_birthday,status_update'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
Status Update Demo
Download Script Live Demo
Note: Above cases access_token value not static, it's depends on Facebook login session.
Facebook Offline Data Access
Here access_token is static, you can store this into users table. Any time you can do access or update Facebook using this access_token key. But facebook log out would't support so that you have to build native log out system for clearing sessions values as $userdata. Offline Post to my Wall
Here any time you can update the Facebook wall. Just notice Access my data any time in following screen shot.
$loginUrl = $facebook->getLoginUrl(
array(
'scope' => 'email,user_birthday,status_update,offline_access'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
array(
'scope' => 'email,user_birthday,status_update,offline_access'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
Offline Access Demo
Download Script Live Demo9lessons labs is offline access.
Facebook Full Permission
Here I have requested full available scope to Facebook, based on your web project requirement you can select the user permission values. For more information about Facebook permissons read this link.
$loginUrl = $facebook->getLoginUrl(
array(
'scope' => 'user_about_me,user_activities,user_birthday,user_checkins,user_education_history,user_events,user_groups,user_hometown,user_interests,user_likes,user_location,user_notes,user_online_presence,user_photo_video_tags,user_photos,user_relationships,user_relationship_details,user_religion_politics,user_status,user_videos,user_website,user_work_history,email,read_friendlists,read_insights,read_mailbox,read_requests,read_stream,xmpp_login,ads_management,create_event,manage_friendlists,manage_notifications,offline_access,publish_checkins,publish_stream,rsvp_event,sms,publish_actions,manage_pages'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
array(
'scope' => 'user_about_me,user_activities,user_birthday,user_checkins,user_education_history,user_events,user_groups,user_hometown,user_interests,user_likes,user_location,user_notes,user_online_presence,user_photo_video_tags,user_photos,user_relationships,user_relationship_details,user_religion_politics,user_status,user_videos,user_website,user_work_history,email,read_friendlists,read_insights,read_mailbox,read_requests,read_stream,xmpp_login,ads_management,create_event,manage_friendlists,manage_notifications,offline_access,publish_checkins,publish_stream,rsvp_event,sms,publish_actions,manage_pages'
));
echo '<a href="'.$loginUrl.'">Login with Facebook</a>';
Full Access Demo
Live Demo
logout.php
Native log out sessions destroy.
<?php
session_start();
$user='';
$userdata='';
session_destroy();
header("Location: fblogin.php");
?>?
session_start();
$user='';
$userdata='';
session_destroy();
header("Location: fblogin.php");
?>?
db.php
PHP database configuration file
<?php
$mysql_hostname = "Host name";
$mysql_user = "UserName";
$mysql_password = "Password";
$mysql_database = "Database Name";
$bd = mysql_connect($mysql_hostname, $mysql_user, $mysql_password) or die("Could not connect database");
mysql_select_db($mysql_database, $bd) or die("Could not select database");
?>
$mysql_hostname = "Host name";
$mysql_user = "UserName";
$mysql_password = "Password";
$mysql_database = "Database Name";
$bd = mysql_connect($mysql_hostname, $mysql_user, $mysql_password) or die("Could not connect database");
mysql_select_db($mysql_database, $bd) or die("Could not select database");
?>
Awesome Script!!! Thank you so much.
Great Stuff! Great Stuff! Great Stuff! Thanks
LIKE!! super cool script!! thankz :)
Thank You! Really helpful tutorial. You have shown how to get data like name, birthday etc. but how can I also retrieve information about school (name, year etc.) and other items that are in array ?
Thanks !
Great tutorial, but can we have a tutorial on facebook like tagging friends in an image...it would be very helpful
Getting school information was simple :)
$education = $userdata['education'];
foreach($education as $edu) {
$school = $edu['school']['name'];
$year = $edu['year']['name'];
$type = $edu['type']['name'];
$conc = $edu['concentration'];
if($conc) {
foreach($conc as $concentration) {
$concentration = $concentration['name'];
}
}
/*echo $school.$year.$type.$concentration;*/
}
Exactly what I was looking for. Can you do the same for the Google+ social network?
Great bindas work it ;)
Really Good Work ..
very good i like :D
Thanks for your Script (-: One Question. How can i update my Status when i logout or will post 2 days later? I have all Data in my Database.
Hey guys, line 11 of home.php -
$access_token=$facebook[$access_token_title];
- seems to give me an error, any ideas?
It says "Fatal error: Cannot use object of type Facebook as array"
Great job! Thaks to autors. Exelent!
Fatal error: Uncaught exception 'Exception' with message 'Facebook needs the CURL PHP extension.' in C:\wamp\www\Facebook_Twitter_Login\fbsdk_basic\basic\lib\base_facebook.php:19 Stack trace: #0 C:\wamp\www\Facebook_Twitter_Login\fbsdk_basic\basic\lib\facebook.php(18): require_once() #1 C:\wamp\www\Facebook_Twitter_Login\fbsdk_basic\basic\fblogin.php(5): require('C:\wamp\www\Fac...') #2 {main} thrown in C:\wamp\www\Facebook_Twitter_Login\fbsdk_basic\basic\lib\base_facebook.php on line 19
pls help....
@Yogesh
Enable CURL extension for PHP
hello there,
$loginUrl = $facebook->getLoginUrl(array(
'scope' => 'email,user_birthday'
));
what u mean by this email and birth day filed..
what value i will replace for this
Please help me
thanks in advance
Very helpful
Yogesh
how to Enable CURL extension for PHP in Zend Server ...
Waoo!! gr8 tutorial
how can i do this with canvas?
Working with Facebook SDK Permissions. I can't logout account. What can i do???????????????
getting error while creating facebook application...cant verify your account...what does it mean..??..how do i solve????
I tried to run it, but I get...
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/content/50/8522650/html/9lessons/fblogin.php:3) in /home/content/50/8522650/html/9lessons/lib/facebook.php on line 37
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/50/8522650/html/9lessons/fblogin.php:3) in /home/content/50/8522650/html/9lessons/lib/facebook.php on line 37
Any hints?
This worked really well for tracking individual logins! I'd like to use this to set up accounts for users and include other values, like game points. Should I simply get rid of the auto-incrementing ID, or will I still run into trouble with the SQL tables? Thanks!!
i have a solution for your headers already send problem... you have whitespace before the in your PHP code. I struggled with this for several hours. Fix fblogin.php first.
http://forum.mamboserver.com/showthread.php?t=42814
Hi Srinivash,
I want to access all the contacts detail of my friends from my gmail account just by giving an email id and password using PHP and JQuery..
itswadesh@gmail.com
hi , i am subscribed member of u r emails. i want to ask how to post user activity of our site to their facebook profile.
for example , now a days everybody is using Washington post social reader on facebook . when the user sign in for washigton post , washigton post updates that user profile that the given user is reading their articles which also appears in their friends news feed. So how to do that . Email me at vishal.seven7@gmail.com
Hi Srinivash,
Below error coming after the login :
"An error occurred with Pawan. Please try again later."
Thanks
Pawan Sharma
hello srinivash. I like this article. but will it be totally secure to login through facebook? because now a days there are many hacking attacks happening in facebook.
So cool dude
Hey dude.. Its superlike script for facebook permission... But I am little bit confuse about how to get friends email id's.... Is it possible??
If yes then please tell me some thing good way to find it out...
hey some error when login redirect the same page not in home page why? anybody know please help me
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/..../status_update/fblogin.php:3) in /home/.../status_update/lib/facebook.php on line 37
shows this error and redirect to the same page...
Hey where this lib/facebook.php
Warning: require(lib/facebook.php) [function.require]: failed to open stream: No such file or directory in C:\wamp\www\FB\fblogin.php on line 3
Fatal error: require() [function.require]: Failed opening required 'lib/facebook.php' (include_path='.;C:\php5\pear') in C:\wamp\www\FB\fblogin.php on line 3
can you help me, how to create NOTEs using Facebook SDK ?
I can read note written by my friend, and with public setting.
but I can't read from non-friend or private setting, right?
This is My code to read note
---------------------------------------
$fql = "SELECT uid, note_id, title, content_html, content, created_time, updated_time FROM note WHERE note_id=$note_id";
$params = array(
'method' => 'fql.query',
'query' => $fql,
'callback' => '',
'access_token' => $facebook->getAccessToken()
);
$result = $facebook->api($params);
--------------------------------------------
Now, how to create a note ? confused :(
Example pleasee...
How to solve this error?
I just found this error when using Google Chrome, but if I use Firefox, my facebook app running normally and no error appear.
Fatal error: Uncaught Exception: 102:
Requires user session thrown in /home/XXXX/public_html/my_app/fb/base_facebook.php on line 1040
How to delete a status ?
why, after complete login into facebook, fblogin.php not redirect into home.php?
It works for me but it returns nothing and it does't redirect to home.php.
Hi Srinivas,
Quick question, in "access my data anytime" mode... how do I then display the users info (specifically FB pic) throughout my website?
Thanks
George
hey (-:
how can i get tzhe user likes?
for example -> all music likes.
i tried it with $userdata['likes'] & $userdata['music'], but it dont work )-:
Hi Srinivas,
I created app on facebook, had provided app ID and app secret, but when I clicked on sign in to facebook link , I got an error sayin:
An error occurred with esprit. Please try again later.
API Error Code: 191
API Error Description: The specified URL is not owned by the application
Error Message: Invalid redirect_uri: Given URL is not allowed by the Application configuration.
@Reena
Try with registered live URL. Localhost it will not work.
Fatal error: Uncaught exception 'Exception' with message 'Facebook needs the CURL PHP extension.' in C:\xampp\htdocs\basic\lib\base_facebook.php:19 Stack trace: #0 C:\xampp\htdocs\basic\lib\facebook.php(18): require_once() #1 C:\xampp\htdocs\basic\fblogin.php(5): require('C:\xampp\htdocs...') #2 {main} thrown in C:\xampp\htdocs\basic\lib\base_facebook.php on line 19
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\basic\fblogin.php:3) in C:\xampp\htdocs\basic\lib\facebook.php on line 37
Can you help me, how we get friend list using Facebook SDK ?
My Code is as:
$url="https://graph.facebook.com/".$userdata['id']."/friends?access_token=".$access_token;
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
echo $output;
I am getting error:
{"error":{"message":"(#200) Permissions error","type":"OAuthException"}}
Hi ,
i want that facebook login page should be open in popwindow.
I some one can help me . .. . ?
Hello, can someone pls provide a code with a popup windows for login instead opening in the same window?
Hello, the logout you provided doesnt work as it should, it doesnt kill the sesion and doesnt logout from facebook
?
can u pls modifiy this?