How to Display Dynamic Data in PHP table from Database

I have coded this but it is displaying nothing. I want it to display multiple data like if empid is 221 then it displays all the rows against 221 empid in the table.

<?php foreach($_POST['row'] as $row): ?>                         <tr>             <td> <?php echo $row['id']; ?> </td>             <td> <?php echo $row['empid']; ?> </td>             <td> <?php echo $row['firstname']; ?> </td>             <td> <?php echo $row['lastname']; ?> </td>         </tr>     </table>              <div class="img">          <?php             echo '<img src="data:image/jpeg;base64,'.base64_encode($row['image'] ).'" height="500" width="500"/>';             echo "<br>";          ?>             </div>          <?php             endforeach;          }          ?> 

SQL Query is this

if(isset($_POST["search"]))         {             $empid = $_POST['empid'];              $res=mysqli_query($link,"select * from record where empid ='$empid'");              if (mysqli_num_rows($res) == 0)             {                 echo"<script language='javascript'>                    alert(\"Record Not found!\");                 </script>                 ";             } 
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