Files in folder in drop down format - php

Question

I am editing my earlier post. Hope I can explain the requirement in a better way.
I use the following script (Courtesy Stack Overflow) to upload the data from an XML file to MySQL tabele
The XML file gets uploaded daily (sometimes a couple of times) in the uploads folder. Can the following script be modified so that a dropdown menu appears with lastest last 8 file names in the uploads folder alongwith with date and time stamp (uploads/data-20230214.xml was uploaded on: 15-02-2023 17:20:24). And a submit button. After selecting a file from the dropdown menu and on clicking the submit button, the following script should run.
<?php
// Connect to database
$servername = "localhost";
$username = "abc";
$password = "******";
$dbname = "dbnamexx";
$db="dbyy";
$tablename="testtable";
$conn = mysqli_connect($servername, $username, $password, $dbname);
$affectedRow = 0;
// Load xml file else check connection
$xml = simplexml_load_file("dgdata/feed-20230214.xml")
or die("Error: Cannot create object");
// Assign values
foreach ($xml->children() as $row) {
$id = mysqli_real_escape_string($conn, $row->id);
$Name = mysqli_real_escape_string($conn, $row->Name);
$City = mysqli_real_escape_string($conn, $row->City);
$Country = mysqli_real_escape_string($conn, $row->Country);
$Url = mysqli_real_escape_string($conn, $row->Url);
$documents = mysqli_real_escape_string($conn, $row->documents);
// SQL query to insert data into xml table
$sql = 'INSERT INTO testtable(id, Name, City, Country, Url, documents) VALUES ("' . $id . '","' .$Name . '","' .$City . '","' .$Country . '","' .$Url . '","' .$documents . '")';
$result = mysqli_query($conn, $sql);
if (! empty($result)) {
$affectedRow ++;
} else {
$error_message = mysqli_error($conn) . "\n";
}
}
?>
<center><h2>Upload Status</h2></center>
<center><h1>XML Data Uploaded in Mysql</h1></center>
<?php
if ($affectedRow > 0) {
$message = $affectedRow . " records inserted";
} else {
$message = "No records inserted";
}
?>
<style>
body {
max-width:550px;
font-family: Arial;
}
.affected-row {
background: #cae4ca;
padding: 10px;
margin-bottom: 20px;
border: #bdd6bd 1px solid;
border-radius: 2px;
color: #6e716e;
}
.error-message {
background: #eac0c0;
padding: 10px;
margin-bottom: 20px;
border: #dab2b2 1px solid;
border-radius: 2px;
color: #5d5b5b;
}
</style>
<div class="affected-row">
<?php echo $message; ?>
</div>
<?php if (! empty($error_message)) { ?>
<div class="error-message">
<?php echo nl2br($error_message); ?>
</div>
<?php } ?>