当我运行报告时，我需要放置三位小数

Question

My PHP code runs a specific report but when it displays with many decimal places. I want my code to round off to 3 decimal places. Any ideas. Below is my code.

<?php
  while ($row = mysql_fetch_array($result)) {
                ?>

   <tr>
    <td><?php    echo $row['dategenerated'];      ?></td>
                    <td><?php echo $row['invoiceno']; ?></td>
    <td><?php echo $row['outletname']; ?></td>

    <td><?php echo     $row['businessregistrationno']; ?></td>
    <td><?php echo $row['barcode']; ?></td>

    <td class="char-align" align="right"  style="padding-right:70px;" ><?php echo (($row['QtyOrdered'] - $row['QtyDelivered'] ) / $row['packno'] ); ?></td>
    <td><?php echo $row['productname']; ?></td>

    <!--<td class="char-align" align="right"  style="padding-right:70px;" ><?php echo (($row['QtyOrdered'] - $row['QtyDelivered'] ) / $row['packno']); ?></td>-->
    <td class="char-align" align="right"  style="padding-right:70px;" ><?php echo (($row['QtyOrdered'] - $row['QtyDelivered'] ) / $row['packno'])  * $row['price']; ?></td>
    <td class="char-align" align="right"  style="padding-right:70px;" ><?php echo (($row['QtyOrdered'] - $row['QtyDelivered'] ) / $row['packno'])  * $row['price'] * $row['vat'] - (($row['QtyOrdered'] - $row['QtyDelivered']) / $row['packno'])  * $row['price']  ; ?></td>
            <td class="char-align" align="right"  style="padding-right:70px;" ><?php echo (($row['QtyOrdered'] - $row['QtyDelivered'] ) / $row['packno']) * $row['price'] * $row['vat']; ?></td>



   </tr>
}             

Answer 1

You may use:

echo number_format($val,3);

Or

echo round($val,3);