How to use magento2 function in root file

Question

create test.php file in magento2 root, i want require baseUrl also i try to

require __DIR__ . '/app/bootstrap.php';

but it's not work

Answer 1

It's work

use Magento\Framework\App\Bootstrap;
require __DIR__ . '/app/bootstrap.php';

$bootstrap = Bootstrap::create(BP, $_SERVER);
$obj = $bootstrap->getObjectManager();
$obj->get('\Magento\Framework\App\State')->setAreaCode('frontend'); // for remove Area code is not set error
$storeManager = $obj->get('\Magento\Store\Model\StoreManagerInterface');
echo $baseUrl=$storeManager->getStore()->getBaseUrl();

Answer 2

$objectManager  = \Magento\Framework\App\ObjectManager::getInstance();
$storeManager   = $objectManager->get('\Magento\Store\Model\StoreManagerInterface');
$baseUrl        = $storeManager->getStore()->getBaseUrl();

OR To get base dir path use ::

$myModuleDir = BP . '/app/code/MyVendor/MyModule';