public function activecampaign_subscribe($that, $ar, $wpm_id, $email, $unsub = false)
 {
     $options = $that->GetOption('Autoresponders');
     $maps = $options['activecampaign']['maps'][$wpm_id];
     if (empty($maps)) {
         return;
     }
     $api_url = $options['activecampaign']['api_url'];
     $api_key = $options['activecampaign']['api_key'];
     $ac = new WpActiveCampaign($api_url, $api_key);
     try {
         if (!empty($maps)) {
             if ($unsub && $options['activecampaign'][$wpm_id]['autoremove']) {
                 $ac->remove_from_lists($maps, $email);
             }
             if (!$unsub) {
                 $ac->add_to_lists($maps, array('first_name' => $that->ARSender['first_name'], 'last_name' => $that->ARSender['last_name'], 'email' => $that->ARSender['email']));
             }
         }
     } catch (Exception $e) {
         error_log($e->getMessage());
     }
 }
<?php

$__index__ = 'activecampaign';
$__ar_options__[$__index__] = 'ActiveCampaign';
$__ar_affiliates__[$__index__] = 'http://wlplink.com/go/active-campaign';
$__ar_videotutorial__[$__index__] = wlm_video_tutorial('integration', 'ar', $__index__);
if ($data['ARProvider'] == $__index__) {
    if ($__INTERFACE__) {
        $class_file = $this->pluginDir . '/extlib/active-campaign/active-campaign.php';
        include $class_file;
        $ac = false;
        $lists = array();
        if (!empty($data['activecampaign']['api_url']) && !empty($data['activecampaign']['api_key'])) {
            $ac = new WpActiveCampaign($data['activecampaign']['api_url'], $data['activecampaign']['api_key']);
            $lists = $ac->get_lists();
        }
        ?>
		<form method="post">
			<input type="hidden" name="saveAR" value="saveAR" />

			<h2 class="wlm-integration-steps">Step 1: Enter your API Settings</h2>
			<p>You may obtain your API URL and Key by logging in to your ActiveCampaign account and going to "Your Settings"</p>
			<table class="form-table">
				<tr>
					<th>API URL</th>
					<td><input size="50" type="text" name="ar[api_url]" value="<?php 
        echo $data['activecampaign']['api_url'];
        ?>
"/></td>
				</tr>
				<tr>