Invite Friends with Facebook using PHP SDK and Javascript SDK
Invite Friends with Facebook is developed to send the invitation requests to the user’s friends. For this module we can use PHP SDK 3.0 and JavaScript SDK.
For Creating an App, which you can obtain from the App Dashboard.
In this demo module,You need App Id and App Secret.
config.php
<?php
session_start();
$appID='Your APP Id';
$appSecret='Your APP Secret';
if($_SERVER['HTTP_HOST']=='localhost'){
$base_url='http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
}else{
$base_url='http://'.$_SERVER['HTTP_HOST'];
}
?>
Authentication & Authorization
Authentication functionality is can be achieved using JavaScript SDK method which is FB.login.
index.php
<?php require 'config.php'; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Invite Friends using Facebook</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js" type="text/javascript"></script>
</head>
<body>
<img src="images/invite_facebook.png" id="facebook" style="cursor:pointer;float:left;margin-left:460px;" />
<div id="fb-root"></div>
</script>
<script type="text/javascript">
window.fbAsyncInit = function() {
FB.init({
appId:'<?php echo $appID; ?>', cookie:true,
status:true, xfbml:true,oauth : true
});
};
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
$('#facebook').click(function(e) {
FB.login(function(response) {
if(response.authResponse) {
parent.location ='<?php echo $base_url; ?>invite.php';
}
},{scope: 'email,read_stream,publish_stream,user_birthday,user_location,user_work_history,user_hometown,user_photos'});
});
</script>
</body>
</html>
And for get the list of Facebook friends, we used the invite.php
invite.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Invite Friends using Facebook</title>
<style type="text/css">
.fb_frnds{
list-style:none;
}
.fb_frnds li{
padding:10px;
float:left;
width:30%;
}
.frnd_list{
margin-top:-25px;
margin-left:40px;
}
.fb_frnds a{
text-decoration:none;
background: #333;
/* for IE */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#333', endColorstr='#D95858');
/* for webkit browsers */
background: -webkit-gradient(linear, left top, left bottom, from(#333), to(#D95858));
/* for firefox 3.6+ */
background: -moz-linear-gradient(top, #333, #D95858);
color: #FFFFFF;
float: right;
font: bold 13px arial;
margin-right:110px ;
}
</style>
</head>
<body>
<?php
require 'config.php';
require 'lib/facebook/facebook.php';
$facebook = new Facebook(array(
'appId' => $appID,
'secret' => $appSecret,
));
//get the user facebook id
$user = $facebook->getUser();
if($user){
try{
//get the facebook friends list
$user_friends = $facebook->api('/me/friends');
}catch(FacebookApiException $e){
error_log($e);
$user = NULL;
}
}
if(isset($user_friends)){ ?>
<h1> Facebook Friends List </h1> <a href="javascript:void(0);" onclick="fb_logout();">Logout</a>
<ul class="fb_frnds">
<?php
foreach($user_friends['data'] as $user_friend){
?>
<li ><img src="https://graph.facebook.com/<?php echo $user_friend['id']; ?>/picture" width="30" height="30"/>
<div class="frnd_list"><?php echo $user_friend['name']; ?><a href="javascript:void(0);" onclick="send_invitation(<?php echo $user_friend['id']; ?>);"> Invite </a></div>
</li>
<?php } ?>
</ul>
<?php
}else{
header('Location: '.$base_url);
}?>
<script src="http://connect.facebook.net/en_US/all.js#xfbml=1"> </script>
<script type="text/javascript">
FB.init({
appId:'<?php echo $appID; ?>', cookie:true,
status:true, xfbml:true
});
function send_invitation(fb_frnd_id){
FB.ui({ method: 'apprequests',
message: 'IdiotMinds Programming Blog...',
to:fb_frnd_id
});
}
function fb_logout(){
FB.logout(function(response) {
parent.location ='<?php echo $base_url; ?>';
});
}
</script>
</body>
</html>
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I have tried this. Quit simple and efficient. Can you tell me gmail and twitter invitations?