This script is working for deleting from mysql database, but it’s not unlinking from local directory files. Can anyone help to fix this script? Here’s the script. The rows is:

| product_id |         product_image              |
| ---------- | ---------------------------------- |
|    161     | ../up/3100882396654337b6a6da.png   |

The PHP:

<?php 
require_once 'database.php';
$valid['success'] = array('success' => false, 'messages' => array());
$productId = $_POST['productId'];
if($productId) { 
 $sql = "DELETE FROM product WHERE product_id = {$productId}";
if($connect->query($sql) === TRUE) {
$valid['success'] = true;
$valid['messages'] = "Successfully deleted";
} else {
$valid['success'] = false;
$valid['messages'] = "Error could not be deleted";
}
$connect->close();
echo json_encode($valid);
}