Moved from "app/src" to "app/application".

Otherwise phpstorm doesn't understand the paths correctly. He thinks that this is not a complete application, but a package. And when creating a class, the namespace indicates “app” with a small letter, but should be “App”.

app/application/app/Dto/User/ManyRoleDto.php

@@ -0,0 +1,32 @@
+<?php declare(strict_types=1);
+
+namespace App\Dto\User;
+
+use App\Exceptions\Dto\User\ManyRoleDtoException;
+
+final class ManyRoleDto
+{
+    private array $roles = [];
+
+    public function __construct(array $roles = []) {
+        foreach ($roles as $role) {
+            if (!is_numeric($role) || is_float($role)) {
+                throw new ManyRoleDtoException('Not an integer: ' . $role . '.');
+            }
+            $this->add((int) $role);
+        }
+    }
+
+    public function add(int $id): void
+    {
+        if ($id < 1) {
+            throw new ManyRoleDtoException('Only Integer > 0.');
+        }
+        $this->roles[] = $id;
+    }
+
+    public function toArray(): array
+    {
+        return $this->roles;
+    }
+}