validasi

<html>

<head>
  <title></title>
</head>

<body>

<?php
    error_reporting(0);

        foreach ($_POST['iddetail'] as $key => $iddetail) {

        $idpembelian = $_POST['idpembelian'][$key];
        $nameID = $_POST['nameID'][$key];
         $idproduk = substr($nameID, 0,3);
        $date = $_POST['date'][$key];
         $merk = substr($nameID, 3);
        $hargabeli = $_POST['hargabeli'][$key];
        $hargajual = $_POST['hargajual'][$key];
        $qty = $_POST['qty'][$key];


        $con1=!is_numeric($hargabeli);
        $con2=!is_numeric($hargajual);

        if(empty($iddetail) || empty($idpembelian) || empty($idproduk) || empty($merk) || empty($hargabeli) || empty($hargajual) || empty($qty)) {
               $err1=1;
            }else if (($con1) || ($con2)){
               $err2=1;
            }else{
               $err3;
            }
        }

        if($err1){
            echo ("<table align='center'><tr bgcolor='iceblue'><td align='center' width='1024'> <font face='calibri' color='white'>
                Data insert is uncomplete
            </table></tr></td>");
            }
        if($err2){
            echo ("<table align='center'><tr bgcolor='iceblue'><td align='center' width='1024'> <font face='calibri' color='white'>
                Input price must be numeric
            </table></tr></td>");
            }
        if($err3){
            echo ("<table align='center'><tr bgcolor='iceblue'><td align='center' width='1024'> <font face='calibri' color='white'>
                Your data has been save
                </table></tr></td>");
            }
            echo '</table>';
?>

</body>
</html>