add class customers to src db

public/index.php

@@ -167,12 +167,13 @@ $app->get('/order/{id}', function (Request $request, Response $response, array $
     return $response;
 });
 
-
+// put this in src db
 $app->get('/customers', function (Request $request, Response $response, array $args) {
     $db = new DB();
     $sql = "SELECT * FROM clients";
     $stmt = $db->prepare($sql);
     $res = $stmt->execute();
+    
 
     $response->getBody()->write("<h1>CUSTOMERS LIST </h1>");
     $response->getBody()->write('<hr/>');

src/DB/Customers.php

@@ -0,0 +1,11 @@
+<?php
+
+use Shop\DB\DB;
+
+class Customers extends DB {
+	public function customers(){
+		$stmt= $this->prepare("SELECT * FROM clients");
+		$res = $stmt->execute();
+		return $res;
+	}
+}