Çoklu Checkbox Post Etme

<form name="grform" method="post" action="grkaydet.php">
    <?php 
   echo "<input type='hidden' name='batchnum' value='$batchnum'>";
                   
                
				
                while ($b=mysql_fetch_array($verilericek)){
$no =$b['no'];
				$urunkodu =$b['urunkodu'];
$winskodu =$b['winskodu'];
$batchnum =$b['batchnum'];
$processorder =$b['processorder'];
$Tarih =$b['Tarih'];
$palet =$b['paletno'];
$kolitoplam=$b['kolison'];
$kolibaslangic =$b['kolibas'];
$kolison =$b['kolison'];
$Boxnr =$b['Boxnr'];
$personel =$b['personel'];
$durum =$b['durum'];
if($durum=="1") { 
$durum1 = '<center><img src="../resim/ok.png"></center>'; 
}else { 
$durum1 = '<center>
<input type="checkbox" name="grbutton[]" value="1"/>
</center>'; 
};



                    echo "<tr>
              <input type='hidden' name='no[]' value='$no'>
			   
 			<td>$Tarih</td>
 			<td>$palet<input type='hidden' name='palet[]' value='$palet'></td>			
            <td>$kolibaslangic</td>
			<td>$kolison</td>
			<td>$personel</td>
			<td>$durum1</td>
                              
                </tr>";
                     
                }


	
                if (mysql_error()) { echo ("MySQL hatası oluştu. Hata: ");
echo mysql_error() ;
}

ob_end_flush() 
          
   ?>
   <br>
   <tr>
   <td colspan="5">
   </td>

   <td>
   <input type="submit" name="buton" value="Kaydet" />
   </td>
   </tr>
   
</form>

<?php 


// Create connection
foreach ($_POST['no'] as $i => $no) {
	$durum= $_POST['grbutton'][$i];
	$palet= $_POST['palet'][$i];
    if (!$no)
        continue;



echo "ID:$no, Checkbox: $durum <br>";
}


$conn->close();
?>

<form method="post"> 
 <?php 
 for ($z=1; $z <10 ; $z++)  
 {  
     echo'<input type="checkbox" value="'.$z.'" name="grbutton[]" />'; 
 }  
 ?> 
 <input type="submit" name="buton" value="Kaydet">   
 </form> 
  
 <?php  
 if(isset($_POST['buton'])) 
 { 
    $grbutton = $_POST['grbutton']; 
  
    foreach ($grbutton as $grbuttons=>$i) { 
              echo "Checkbox : ".$i."<br />"; 
         } 
 }     
 ?>