How Do I Create a Vanity URL After Submit - php

Question

Hello so I have a site setup to where users can submit projects and it adds it to a upload folder and the database for user download anyway I want to have it so once a user submits a new project it creates a URL like “sitename.com/projects.html?projectname” or something like that. My code is below.
P.S Everything on my site works just need to learn how to create the url.
projects.html: Mainly used to display the recent projects.
<?php include("includes/header.php"); ?>
<?php
include_once 'dbconnect.php';
// fetch files
$sql = "select filename, title, description from tbl_files LIMIT 4";
$result = mysqli_query($con, $sql);
?>
<div id="container">
<div class="wrapper">
<div id="content">
<h2>Recent Projects <button style="float: right;">New Project</button></h2>
<p><table class="table table-striped table-hover">
<thead>
<tr>
<th>#</th>
<th>File Name</th>
<th>Description</th>
<th>Download</th>
</tr>
</thead>
<tbody>
<?php
$i = 1;
while($row = mysqli_fetch_array($result)) { ?>
<tr>
<td><?php echo $i++; ?></td>
<td><?php echo $row['title']; ?></td>
<td><?php echo $row['description']; ?></td>
<td><a href="uploads/<?php echo $row['filename']; ?>" download>Download</td>
</tr>
<?php } ?>
</tbody>
</table>
</div>
</p>
<div id="column">
<div class="holder">
<h2>Welcome!</h2>
<ul id="latestnews">
<li class="last"> <p><?php
session_start();
include_once "vendor/autoload.php";
$page = new membership\Page(1);
if ($page->isValid() == true){
echo "Hello " . $_SESSION["username"] . "!<br /><br />
<a href='logout.html'>Logout</a>\n";
} elseif ($page->isValid() == false) { echo "<center>Please <a href='login.php'>Log in</a> to share projects.<br /> <a href='register.php'>Need A Account?</a></center>";}
?><br />
</p>
<br /></p>
</li>
</ul>
</div>
</div>
<br class="clear" />
</div>
</div>
<?php
error_reporting(E_ALL & ~E_NOTICE);
include('includes/memberlistconfig.php');
// call this file only after database connection
require_once 'functions.php';
?>
<div id="container">
<div class="wrapper">
<div id="content">
<h2>Categories</h2>
<p>
<div class="height20"></div>
<?php echo $emsg; ?>
<article>
Click on one of the categories to see what’s inside.
<ul>
<?php
$res = fetchCategoryTreeList();
foreach ($res as $r) {
echo $r;
}
?>
</ul>
</article>
</div></p>
<br class="clear" />
</div>
</div>
<?php include("includes/footer.php"); ?>
new-project.html: Allows used to upload a new project.
<?php
include_once('includes/header.php'); ?>
<?php
include_once 'dbconnect.php';
// fetch files
$sql = "select filename from tbl_files";
$result = mysqli_query($con, $sql);
?>
<?php
session_start();
include_once "vendor/autoload.php";
$page = new membership\Page(1);
if ($page->isValid() == true) {
?>
<div id="container">
<div class="wrapper">
<div id="content">
<h2>New Project</h2>
<p><center>
<form action='upload.php' method='post' enctype='multipart/form-data'>
<legend>Select File to Upload:</legend>
<div class='form-group'>
Title: <br /><input type='text' name='title' maxlength="255"/><br /><br />
Description: <br /><textarea type='text' name='description' maxlength="2000"></textarea><br /><br />
<input type='file' name='file1' />
</div>
<div class='form-group'><br />
<input type='submit' name='submit' value='Upload' class='btn btn-info'/>
</div>
<?php if (isset($_GET['st'])) { ?>
<div class='alert alert-danger text-center'>
<?php
if ($_GET['st'] == "success") {
echo "File Uploaded Successfully!";
} else {
echo 'Invalid File Extension!';
}
?>
</div>
<?php } ?>
</form></center>
</p><?php } ?>
<br /></div>
</p>
<div id="column">
<div class="holder">
<h2>Project Upload Rules</h2>
<ul id="latestnews">
This is this rules you must follow for uploading a project.<br /><br />
- You must own the project / script.<br />
- Must be 100% clean / safe.<br />
- Code must be easy to read.<br />
- No outdated code.<br />
<br />
If you don’t follow the rules your account who be banned.
<br />
</p>
<br /></p>
</li>
</ul>
</div>
</div>
<br class="clear" />
</div>
</div>
<?php include_once('includes/footer.php'); ?>
upload.php: This file uploads the info to the database.
<?php include('dbconnect.php'); ?>
<?php
//check if form is submitted
if (isset($_POST['submit']))
{
$filename = $_FILES['file1']['name'];
//upload file
if($filename != '')
{
$ext = pathinfo($filename, PATHINFO_EXTENSION);
$allowed = ['zip', 'rar', 'php', 'html', 'sql'];
//check if file type is valid
if (in_array($ext, $allowed))
{
// get last record id
$sql = 'select max(id) as id from tbl_files';
$result = mysqli_query($con, $sql);
if (count($result) > 0)
{
$row = mysqli_fetch_array($result);
$filename = ($row['id']+1) . '-' . $filename;
}
else
$filename = '1' . '-' . $filename;
//set target directory
$path = 'uploads/';
$created = #date('Y-m-d H:i:s');
move_uploaded_file($_FILES['file1']['tmp_name'],($path . $filename));
$title = '';
if(!empty($_POST['title']))
{
$title = mysqli_real_escape_string($con, $_POST['title']);
}
$description = '';
if(!empty($_POST['description']))
{
$description = mysqli_real_escape_string($con, $_POST['description']);
}
// insert file details into database
$sql = "INSERT INTO tbl_files(filename, created, title, description) VALUES('$filename', '$created', '$title', '$description')";
mysqli_query($con, $sql);
header("Location: new-project.html?st=success");
}
else
{
header("Location: new-project.html?st=error");
}
}
else
header("Location: new-project.html");
}
?>