$messageContent = isset($_REQUEST['content']) ? trim($_REQUEST['content']) : null; if (empty($subject) || empty($messageContent)) { echo Display::display_error_message(get_lang('ErrorSendingMessage')); exit; } $result = MessageManager::send_message($_REQUEST['user_id'], $subject, $messageContent); if ($result) { echo Display::display_confirmation_message(get_lang('MessageHasBeenSent')); } else { echo Display::display_error_message(get_lang('ErrorSendingMessage')); } break; case 'send_invitation': $subject = isset($_REQUEST['subject']) ? trim($_REQUEST['subject']) : null; $invitationContent = isset($_REQUEST['content']) ? trim($_REQUEST['content']) : null; SocialManager::send_invitation_friend_user($_REQUEST['user_id'], $subject, $invitationContent); break; case 'find_users': if (api_is_anonymous()) { echo ''; break; } $track_online_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ONLINE); $tbl_my_user = Database::get_main_table(TABLE_MAIN_USER); $tbl_my_user_friend = Database::get_main_table(TABLE_MAIN_USER_REL_USER); $tbl_user = Database::get_main_table(TABLE_MAIN_USER); $tbl_access_url_rel_user = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER); $search = Database::escape_string($_REQUEST['q']); $access_url_id = api_get_multiple_access_url() == 'true' ? api_get_current_access_url_id() : 1; $user_id = api_get_user_id(); $is_western_name_order = api_is_western_name_order();