Update: CheckUser Credentials for Login

WEBROOT/controller/UserController.php

@@ -20,11 +20,30 @@ class UserController {
         );
     }
 
-    public function UpdateUser() {
-
-    }
-
     public function DeleteUSer() {
         
     }
+
+    public function CheckUser($login, $passwort) {
+
+        $user = DatabaseShow(
+            "Benutzer",
+            "*",
+            "NAME = ? OR EMAIL = ?",
+            $login,
+            $login
+        );
+
+        if (empty($user)) {
+            return false;
+        }
+
+        $user = $user[0];
+
+        if (password_verify($passwort, $user['PASSWORD'])) {
+            return true;
+        }
+
+        return false;
+    }
 }