Users upload images to website and then is displayed in gallary - php

Question

So I have an admin panel built, I am wanting to be able to upload images, change the name of the image file to a number ID which is generated by how many rows there are already in the database. Then have them displayed in a gallery for visitors. I have looked around the internet for a few days now, trying different scripts, mixing and matching, but nothing seems to work. This is PHP btw. I beleive the issue is the move_uploaded_file() function. If anyone could think of a better way or find an error in my code, that would be fantastic. The website is for a client so it would be even more appreciated for promptly replies. Thanks guys
require_once("../php/connect.php");
function GetImageExtension($imagetype){
if(empty($imagetype)) return false;
switch($imagetype){
case 'image/png': return '.png';
default: return false;
}
}
if (!empty($_FILES['fileToUpload']['name'])){
$file_name = $_FILES['fileToUpload']['name'];
$temp_name = $_FILES['fileToUpload']['tmp_name'];
$imgtype = $_FILES['fileToUpload']['type'];
$ext = GetImageExtension($imgtype);
$query1 = "SELECT COUNT(*) FROM gal";
$count = mysqli_query($dbc, $query1);
$imagename = $count + 0;
$newfilename = "$imagename" . ".png";
//Debug
echo "hello <br>";
echo "$newfilename";
//End Debug
$folder = "/uploads/";
if(move_uploaded_file($_FILES['image']['tmp_name'], "$folder" . $_FILES['image']['$newfilename'])){
$query2 = "INSERT INTO `nocas_19164639_admin`.`gal` (`id`, `name`, `active`) VALUES (NULL, '$newfilename', '1')";
mysqli_query($dbc, $query2);
}else{
exit("Error while uploading file...");
}
}

Answer 1

Can i ask why you want to rename the file to a number relating to the row it's on?
Your making a simple task very complex.
You shouldn't store the images in your database, you should upload them to a directory within your site and store the corresponding name in the db.
I don't understand the whole reason for changing the name to a number though, it's just making a mess of everything.
you should just do something like this.
create a directory path in your config file..
defined("UPLOAD_DIRECTORY") ? null : define("UPLOAD_DIRECTORY", __DIR__ . DS . "uploads");
I have created a function for mysqli query just so i dont have to type it out all the time.
function query($sql) {
global $connection;
return mysqli_query($connection, $sql);
}
I then have a confirm query which checks for an error on the query.
function confirm($result) {
global $connection;
if(!$result) {
die("QUERY FAILED" . mysqli_error($connection));
}
}
then you can just simply do something like this to insert into db.
$product_image = escape_string($_FILES['file']['name']);
$image_temp_location = $_FILES['file']['tmp_name'];
move_uploaded_file($image_temp_location, UPLOAD_DIRECTORY . DS . $product_image);
$query = query("INSERT INTO products(product_image) VALUES( '{$product_image}')");