Facebook Programming: API Groups

Facebook Application Programming Step by step tutorial - part 6 Facebook users can gather in a group based on their needs. Group is a network of Facebook users based on interest in certain things.

Method Description

groups.get Showing all groups based on the filter

groups.getMembers Retrieve membership of a group

Showing Groups

To display the group, you can use the following formula:

$facebook->api_client->groups_get($uid, $gids);

$uid is parameter to get the group to a specific user
$gids is parameter that contains an array of ID Group. This is optional

The method will return an array with values such as gid, name, nid, description, group_type, group_subtype, recent_news, pic, pic_big, pic_small, creator, update_time, office, website, and venue.

Here is an example of using groups.get without mentioning a specific user ID.

<?php
// Get these from http://developers.facebook.com
$api_key = '2c73ae8529134aaaaaaaaaaaaaaaaaaa';
$secret  = '3c041a7cbd797aaaaaaaaaaaaaaaaaaa';

include_once './facebook-platform/php/facebook.php';

$facebook = new Facebook($api_key, $secret);
$user = $facebook->require_login();

?>
<h1>Yummie Tester</h1>
Hello <fb:name uid='<?php echo $user; ?>' useyou='false' possessive='true' />! <br>
Your id : <?php echo $user; ?>.<br>

<h2>Groups<h2>

<?
$uid = null;
$gids  = null;
$groups = $facebook->api_client->groups_get($uid, $gids);

echo "<h3>Array Output</h3>";
echo "<pre>";
print_r($groups);
echo "</pre>";

echo "<h3>Another Output</h3>";
echo "<ol>";
foreach($groups as $group){
  echo "<li>".$group['name']."</li>";  
}	
echo "</ol>";
?>

Example array result as follows:

Figure 3.8 List of group

Showing Member Information

You can see anyone who becomes a member of a group. Formula to see is:

$facebook->api_client->groups_getMembers($gid);

Please enter your id of the group. The result, you will get an array of user ID that the member group. You will also receive membership status information. Here's an example usage:

<?php
// Get these from http://developers.facebook.com
$api_key = '2c73ae8529134aaaaaaaaaaaaaaaaaaa';
$secret  = '3c041a7cbd797aaaaaaaaaaaaaaaaaaa';

include_once './facebook-platform/php/facebook.php';

$facebook = new Facebook($api_key, $secret);
$user = $facebook->require_login();

?>
<h1>Yummie Tester</h1>
Hello <fb:name uid='<?php echo $user; ?>' useyou='false' possessive='true' />! <br>
Your id : <?php echo $user; ?>.<br>

<h2>Group Members<h2>

<?
$gid  = 80002146608;
$members = $facebook->api_client->groups_getMembers($gid);

echo "<h3>Array Output</h3>";
echo "<pre>";
print_r($members);
echo "</pre>";

echo "<h3>Another Output</h3>";
echo "<ol>";
foreach($members as $member){
  echo "<li>".$group['name']."</li>";  
}	
echo "</ol>";
?>

The result like this:

Array
(
    [members] => Array
        (
            [0] => 1564394223
            [1] => 1078527089
            [2] => 1108567959
            [3] => 1455886398
            [4] => 1184927288
            [5] => 1358360770
            [6] => 1075642572
            [7] => 1626207382
            [8] => 1226868856
            [9] => 700144751
            [10] => 1651427457
        )

    [admins] => Array
        (
            [0] => 1225924230
        )

    [not_replied] => 
)

We can modify it to be as follows:

<?php
// Get these from http://developers.facebook.com
$api_key = '2c73ae8529134aaaaaaaaaaaaaaaaaaa';
$secret  = '3c041a7cbd797aaaaaaaaaaaaaaaaaaa';

include_once './facebook-platform/php/facebook.php';

$facebook = new Facebook($api_key, $secret);
$user = $facebook->require_login();

?>
<h1>Yummie Tester</h1>
Hello <fb:name uid='<?php echo $user; ?>' useyou='false' possessive='true' />! <br>
Your id : <?php echo $user; ?>.<br>

<h2>Group Members<h2>

<?
$uid  = null;
$gid  = 80002146608;
$groups  = $facebook->api_client->groups_get($uid, $gid);
$members = $facebook->api_client->groups_getMembers($gid);

echo "<h3>Members of ".$groups[0]['name']."</h3>";

echo "<h4>Members</h4>";
echo "<ol>";
foreach($members['members'] as $member){
  echo "<li><fb:name uid=\"$member\" useyou=\"false\"></li>";  
}	
echo "</ol>";

echo "<h4>Admin</h4>";
echo "<ol>";
foreach($members['admins'] as $member){
  echo "<li><fb:name uid=\"$member\" useyou=\"false\"></li>";  
}	
echo "</ol>";

?>

Figure 3.9 List of group's member