<form action="includes/submitprd.inc.php" method="post" enctpype="multipart/form-data">

<input type="text" name="title" placeholder="Name des Produktes">
<input type="number" name="price" placeholder="Ihr Preis" min="1" max="9999">
<input type="file" name="img">
<input type="text" name="descr" placeholder="Artikelbeschreibung einfügen">
<button type="submit" name="submitprd">Produkt einstellen!</button>

</form>

<?php
if (isset($_POST['submitprd'])){
  $img = $_FILES['img'];

}