best way to add data to block from code

Question

I want to add a html page (which I made using code). How can I assign this 'test.phtml' file to a block named 'custom_block'. what is best way to do that ? any help would be highly appreciated. thank you

Answer 1

Create Helloworld.php

<?php
namespace Vendor\Module\Block;

class Helloworld extends \Magento\Framework\View\Element\Template
{
    public function getTitle()
    {
        return 'Magento';
    }
}

Call in layout xml

<referenceContainer name="
 <block class="Vendor\Module\Block\Helloworld" name="helloworld" template="helloworld.phtml" />
</referenceContainer>

Call layout in phtml helloworld.phtml

<h1><?php echo $this->getTitle(); ?></h1>