How to re save all products in Magneto 2

Question

I'm Using this below Script, but on executing my page lands to Error 503.

Can anyone, please help me in re-saving all the product programmatically

<?php
use Magento\Framework\App\Bootstrap;

include 'app/bootstrap.php';

$bootstrap = Bootstrap::create(BP, $_SERVER);
$objectManager = $bootstrap->getObjectManager();

$state = $objectManager->get('Magento\Framework\App\State');
$state->setAreaCode('adminhtml');

$productCollectionFactory = $objectManager->get('\Magento\Catalog\Model\ResourceModel\Product\CollectionFactory');
$productcollection = $productCollectionFactory->create()
                        ->addAttributeToSelect('*')
                        ->load();

foreach ($productcollection as $product) {
    $productId = $product->getId();
    $product = $objectManager->create('Magento\Catalog\Model\Product');
    $product->load($productId);
    $product->save();
}
?>

Thank you.

Answer 1

Here is the code in which i executed locally to save all the simple products programmatically. Make sure to take a Database backup before executing this script & Execute this script from the M2 root folder from the command line & don't forget to re-index. If it works locally while testing. Do the appropriate changes if required based on your requirements.

(or else) save one product programmatically and check the results whether it is working (or) not.

<? php
ini_set('display_errors',1);
error_reporting(E_ALL);
ini_set('memory_limit','512M');
ini_set('max_execution_time', 80000);
require __DIR__ . '/app/bootstrap.php';
$bootstrap = \Magento\Framework\App\Bootstrap::create(BP, $_SERVER);
$objectManager = $bootstrap->getObjectManager();
$state = $objectManager->get('Magento\Framework\App\State');
$state->setAreaCode('adminhtml');


$productCollectionFactory = $objectManager->get('\Magento\Catalog\Model\ResourceModel\Product\CollectionFactory');
$productcollection = $productCollectionFactory->create()
                        ->addAttributeToSelect('*')
                        ->load();
echo "Total Products".$productcollection->getSize().'\r';                      
foreach ($productcollection as $product) {
    if($product->getTypeId() == 'simple'){
        $productId = $product->getId();
        $product = $objectManager->create('Magento\Catalog\Model\Product');
        $product->load($productId);
        $product->save();
        echo "product saved successfully -".$product->getId().'\r';
    }

   }
?>