public static function get_instance()
{
// If the single instance hasn't been set, set it now.
if (null == self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
<?php
/*************************************
* Global Settings Page
*************************************/
$wpcb = WPCB_Admin::get_instance();
$upgrade_message = $wpcb->upgrade_to_pro();
if(isset($_GET['step'])){
$step = $_GET['step'];
}
if(isset($_POST['mailer']) and isset($_POST['apikey']) and isset($_POST['connect'])){
$mailer_id = $_POST['mailer'];
$api_key = $_POST['apikey'];
switch($mailer_id){
//GetResponse
case 1: if (!class_exists('jsonRPCClient')) {
include_once(plugin_dir_path(dirname(__FILE__)).'mailers/getresponse-api.php');
}
$getresponse = new jsonRPCClient('http://api2.getresponse.com');
try{
$name = array();
$allgrcampaigns = $getresponse->get_campaigns($api_key);
foreach($allgrcampaigns as $grcampaign){
$campaign_name = $grcampaign['name'];
$result = $getresponse->get_campaigns($api_key, array ('name' => array ( 'EQUALS' => $campaign_name )));
$res = array_keys($result);
