<?php
 require "connect.php";
 $sql = "SELECT * FROM tb_register where tel like '%{$_POST['search']}%' AND event_id={$_POST['event']}";
$query = mysqli_query($conn,$sql);
?>
<div class="col-md-12">
 <table class="table table-bordered">
 <thead>
 <tr>
 <th>ชื่อ</th>
 <th>นามสกุล</th>
 <th>อายุ</th>
 <th>เบอร์</th>
 </tr>
 </thead>
 <tbody>
 <?php  while ($result = mysqli_fetch_assoc($query)) { ?>
 <tr>
 <td><?php echo $result['name'];?></td>
 <td><?php echo $result['surName'];?></td>
 <td><?php echo $result['age'];?></td>
 <td><?php echo $result['tel'];?></td>
 </tr>
 <?php  } ?>
 </tbody>
 </table>
</div>