$cd = "deneme";
if(empty($cd)){
echo $cd."
";
echo "Cd Deðiþkeninde veri yok";
}else{
echo $cd."
";
echo "Cd Deðiþkeninde veri Var";
}
?>
-------------------------------------------------
$cd = "Bu cd deðiþkenin yeni verisi";
if(isset($cd)){
echo $cd;
}else{
unset($cd);
}
?>
