Pemeriksaan

$CarData = "select name,telp,mobile,email from data_subscribe
            where     name='".trim(addslashes($_POST[Nama]))."' or
                  telp='".trim(addslashes($_POST[Telp]))."' or
                  mobile='".trim(addslashes($_POST[Hp]))."' or
                  email='".trim(addslashes($_POST[email]))."'
            ";
$result=mysql_query($CarData);
$count=mysql_num_rows($result);
if($count==1){
    //Lakukan Alert Data Sudah Ada
}else{
    //Lakukan Eksekusi Insert Data
}