PDO issue in pagination - php

Question

This is pagination code which is converted in PDO form and this is not giving any output which is connected to table , here is code of pdo pagination code
<?php
$total_num_page=2;
if (isset($_GET['page']))
{
$page_id = $_GET['page'];
}
else
{
$page_id = 1;
}
$search = '' ;
if( isset($_POST['search']) )
{
$search = urldecode($_POST['search']);
}
else if( isset($_GET['search']) )
{
$search = urldecode($_GET['search']);
}
if ($search)
{
$all_stmt=$db->prepare("select * from files where recieved_by like :needle or processed_by like :needle or purpose like :needle or file_name like :needle order by date desc");
$needle = '%' . $search . '%';
$all_stmt->bindValue(':needle', $needle, PDO::PARAM_STR);
$all_stmt->execute();
$all_post=$all_stmt->rowCount();
$total_page = ceil($all_post / $total_num_page);
$page_start_from = ($page_id - 1) * $total_num_page;
}
else
{
$all_post_query = "select * from files order by date desc";
$all_stmt=$db->prepare($all_post_query);
$all_stmt->execute();
$all_post=$all_stmt->rowCount();
$total_page = ceil($all_post / $total_num_page);
$page_start_from = ($page_id - 1) * $total_num_page;
}
?>
and here is part where i am fetching data from table database , and i don't know what is problem coming ,
<?php
if ($search)
{
$stmt=$con->prepare("select * from files where recieved_by like :needle or processed_by like :needle or purpose like :needle or file_name like :needle order by date desc limit $page_start_from, $total_num_page"); $needle = '%$search%';
$stmt->bindValue(':needle', $needle, PDO::PARAM_STR);
}
else
{
$stmt=$con->prepare("select * from files order by date desc limit $page_start_from, $total_num_page");
}
$stmt->execute();
$stmt->fetchAll();
if(count($stmt)>0){
while($row=$stmt->fetch())
{
$c_id=$row['id'];
$file=$row['file_name'];
$purpose=$row['purpose'];
$recieve=$row['recieved_by'];
$processed=$row['processed_by'];
$address=$row['address'];
$contact=$row['contact_no'];
$date=$row['date'];
?>
<tr>
<td><?php echo $c_id;?></td>
<td><?php echo $file;?></td>
<td><?php echo $purpose;?></td>
<td><?php echo $recieve;?></td>
<td><?php echo $processed;?></td>
<td><?php echo $address;?></td>
<td><?php echo $contact;?></td>
<td><?php echo $date;?></td>
</tr>
<?php
}
}
else
{
echo "No Related File Found Here ";
}
?>
</tbody>
</table>
<nav id="pagination">
<ul class="pagination">
<?php
$search_str = '';
if ($search) {
$search_str = "&search=" . urlencode($search);
}
for ($i = 1; $i <= $total_page; $i++)
echo "<li class='" . ($page_id == $i ? 'active' : '') . "'><a href='index.php?page=" . $i . $search_str . "'>$i</a></li>";
?>
and this is code of my database
<?php
$servername = "localhost";
$username = "root";
$password = "";
$con = new PDO("mysql:host=$servername;dbname=fileprogramsysteeem", $username, $password);
?>
and i also wanted to check ,if condition in page when there is no related page found in database it should show else output , Now what is i am doing wrong can anybody help me please
No Related File Found Here