1.11/actions_2friends_2add_8php_source.html

 <?php
 // Get the GUID of the user to friend
 $friend_guid = get_input('friend');
 $friend = get_user($friend_guid);

 if (!$friend) {
     register_error(elgg_echo('error:missing_data'));
     forward(REFERER);
 }

 if (!elgg_get_logged_in_user_entity()->addFriend($friend->guid, true)) {
     register_error(elgg_echo("friends:add:failure", array($friend->name)));
     forward(REFERER);
 }

 system_message(elgg_echo("friends:add:successful", array($friend->name)));
 forward(REFERER);
get_input
get_input($variable, $default=null, $filter_result=true)
Get some input from variables passed submitted through GET or POST.
Definition: input.php:27

$friend
$friend
Definition: add.php:11

forward
elgg forward
Meant to mimic the php forward() function by simply redirecting the user to another page...
Definition: elgglib.js:419

elgg_echo
elgg_echo($message_key, $args=array(), $language="")
Given a message key, returns an appropriately translated full-text string.
Definition: languages.php:21

get_user
get_user($guid)
Get a user object from a GUID.
Definition: users.php:87

REFERER
const REFERER
Definition: elgglib.php:1995

$friend_guid
$friend_guid
Definition: add.php:10

system_message
elgg system_message
Wrapper function for system_messages.
Definition: elgglib.js:374

register_error
elgg register_error
Wrapper function for system_messages.
Definition: elgglib.js:383

elgg_get_logged_in_user_entity
elgg_get_logged_in_user_entity()
Return the current logged in user, or null if no user is logged in.
Definition: sessions.php:32