How to pause script before completion message

Id like to force my code to pause after completion and before displaying a completion message. Ive tried sleep and wait commands but they affect the start of running the code. Ive searched the web for how to do this for two days with no success. The reason for wanting the delay before showing the completion message is that the code processes so quickly that the completion message appears as soon as the page shows on the computer. Id appreciate some help on this. Heres my code:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0">
  <title>Foxclone backup, restore, and cloning utility</title>  
  <meta name="description" content= "FoxClone is a Linux based image backup, restore and clone tool using a simple point and click interface." />

    <link rel="stylesheet" type="text/css" media="screen" href="css/update.css"> 

    <!-- Favicon  -->
    <link rel="apple-touch-icon" sizes="180x180" href="images/favicon/apple-touch-icon.png">
    <link rel="icon" type="image/png" sizes="32x32" href="images/favicon/favicon-32x32.png">
    <link rel="icon" type="image/png" sizes="16x16" href="images/favicon/favicon-16x16.png">

    <link rel="mask-icon" href="images/favicon/safari-pinned-tab.svg" color="#5bbad5">
    <meta name="msapplication-TileColor" content="#da532c">
    <meta name="theme-color" content="#ffffff">

</head>
<body>

 <div class="container"> 
     <div class="row" style="text-align:center;" >
       <h1>Foxclone Filelist Updating</h1>
     </div>
     <div class="header">
 </div>   
<?php


    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);
    error_reporting(E_ALL);

    $php_scripts = '../php/';
    require $php_scripts . 'PDO_Connection_Select.php';

    if (!$pdo = PDOConnect("foxclone_data"))     {  
        echo( 'Connection Failed');
    }

        $meg = 1048576 ;  // needed to convert filesize bytes to Mb
        $stmt = $pdo->prepare("UPDATE `files` SET `filename` = ?, `md5` = ?, `filesize` = ?,`logtime` = now() WHERE `id` = ?") ;
        $path = 'download/';  
        $id = NULL;
        $filename = '';

        foreach(glob($path.'*.*') as $file) {
          $id = NULL; 
          $filename = basename($file) ;
          $file = new SplFileInfo($file);
          $extension  = $file->getExtension(); 
          $test = substr($filename, 0,12);
            if ($test == 'foxclone_std') {
                $id = 1;
            }

          if (substr($filename, 0,9) == "foxcloneV"){
                $id = 2;
             }

          if ($extension == "deb") {
                 $id = 3;
            }

          if ($extension == "gz") {
                   $id = 4 ;
            }

          if (substr($filename, 0,4) == "news") {
                   $id = 5 ; 
            }

          if (substr($filename, 0,13) == "foxclone_edge") {
                   $id =6;
            }
            $bytes = number_format(filesize($file) / 1048576, 2) ;
            $getdata = (array($filename, md5_file($file),$bytes , $id)) ;

            $count = $stmt->execute ($getdata) ; 
               IF ($count == 0) {
                echo("Failed to update ".$file);
                die;
        }

    }


   ?>
<-- Here's where I want to pause before displaying the successful completion message -->
<div class="row" style="text-align:center;" </div>   
    <h1>Database Update Successful</h1>