<?php
session_start();
if(empty($_SESSION['keywords'])) {
	$referer = $_SERVER['HTTP_REFERER'];
	if(!empty($referer)) {
	
		function extract_keywords($str,$divider) {
			$foo = explode($divider,$str);
			$bar = explode('&',$foo[1]);
			$keyword = str_replace('%20',' ',str_replace('+',' ',$bar[0]));
			return $keyword;
		}
		
		if(strpos($referer,'?q=')!==false) {
			$_SESSION['keywords'] = extract_keywords($referer,'?q=');
		} elseif(strpos($referer,'&q=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'&q=');
		} elseif(strpos($referer,'?p=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'?p=');
		} elseif(strpos($referer,'&p=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'&p=');
		} elseif(strpos($referer,'?keywords=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'?keywords=');
		} elseif(strpos($referer,'&keywords=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'&keywords=');
		} elseif(strpos($referer,'?keyword=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'?keyword=');
		} elseif(strpos($referer,'&keyword=')!== false) {
			$_SESSION['keywords'] = extract_keywords($referer,'&keyword=');
		} else {
			$_SESSION['keywords'] = '-';
		}
		$arr = explode('?',$referer);
		$_SESSION['referer_domain'] = $arr[0];
	} else {
		$_SESSION['keywords'] = '-';
	}
	$_SESSION['landing_page'] = $_SERVER['REQUEST_URI'];
	if(!empty($_GET['keyword'])) {
		$_SESSION['keywords'] = $_GET['keyword'];
		if(strpos($_SESSION['landing_page'],'?')!==false) {
			$arr = explode('?',$_SESSION['landing_page']);
			$_SESSION['landing_page'] = $arr[0];
		}
	}
}
if(empty($_SESSION['tc'])) {
	if(!empty($_REQUEST['tc'])) {
		$_SESSION['tc'] = $_REQUEST['tc'];
		if($_GET['tc']=='go') {
			include_once($_SERVER['DOCUMENT_ROOT'].'/vx_/site_info.php');
			include_once($_SERVER['DOCUMENT_ROOT'].'/vx/lib/mysql.php');
			$db->query("INSERT INTO lc2{$siteCode}_lc.keyword_impressions_new
						(
							ip_address
							,keywords
							,landing_page
							,date_hit
							,ts
							,referer_domain
							,campaignid
							,adgroupid
							,targetid
							,matchtype
							,network
							,device
							,devicemodel
							,placement
						) VALUES (
							'".$db->clean($_SERVER['REMOTE_ADDR'])."'
							,'".$db->clean($_GET['keyword'])."'
							,'".$db->clean($_SESSION['landing_page'])."'
							,CURDATE()
							,NOW()
							,'".$db->clean($_SESSION['referer_domain'])."'
							,'".$db->clean($_GET['campaignid'])."'
							,'".$db->clean($_GET['adgroupid'])."'
							,'".$db->clean($_GET['targetid'])."'
							,'".$db->clean($_GET['matchtype'])."'
							,'".$db->clean($_GET['network'])."'
							,'".$db->clean($_GET['device'])."'
							,'".$db->clean($_GET['devicemodel'])."'
							,'".$db->clean($_GET['placement'])."'
						)");
		}
	} else {
		$_SESSION['tc'] = 'none';
	}
}
?>