$ref=@$_SERVER[HTTP_REFERER];
$agent=@$_SERVER[HTTP_USER_AGENT];
$ip=@$_SERVER['REMOTE_ADDR'];
$tracking_page_name2 = $_SERVER["SCRIPT_NAME"];
if(strlen($ref) > 2 and !(stristr($ref,"plus2net.com"))){ // exclude referrer from your own site. 
$strSQL = "INSERT INTO track( ref, agent, ip,tracking_page_code, tracking_page_name) VALUES (:ref,:agent,:ip,:tracking_page_code,:tracking_page_name)";

$sql=$dbo->prepare($strSQL);

$sql->bindParam(':ref',$ref,PDO::PARAM_STR, 250);
$sql->bindParam(':agent',$agent,PDO::PARAM_STR, 250);
$sql->bindParam(':ip',$ip,PDO::PARAM_STR, 20);
$sql->bindParam(':tracking_page_name',$tracking_page_name2,PDO::PARAM_STR, 100);
$sql->bindParam(':tracking_page_code',$tracking_page_name,PDO::PARAM_STR, 100);

if($sql->execute()){
// Part of the code to execute after successful execution of query

//echo " Success ";
}
else{ 
// Part of the code to execute if query fails ///
//print_r($sql->errorInfo()); 
}
///////////// inserted details 
}