我有這個PHP腳本:檢查字段功能PHP存在於
for ($desc=1; $_POST['ddata'.$desc]; $desc++) {
if($_POST['ddata'.$desc]){
if ($desc == 1){
$ddata = $_POST['ddata'.$desc];
$dlocatie = $_POST['dlocatie'.$desc];
} else {
$ddata = $ddata.'/'.$_POST['ddata'.$desc];
$dlocatie = $dlocatie.'/'.$_POST['dlocatie'.$desc];
}
}
}
如果我有5個ddata
領域,它給這個錯誤:Undefined index: ddata6
我如何檢查是否該字段的存在使得我可以防止這個錯誤?
是'$ desc' 0 - 4或1 - 5? – DevlshOne