Magento 2: How to Call a CMS Static Block in Phtml File

Display CMS Static Block In Phtml File:

Here the code to show CMS Static Block in any template (phtml) file in Magento 2,
Display CMS Static Block In Phtml File:

Here the code to show CMS Static Block in any template (phtml) file in Magento 2,

<?php
    echo $block->getLayout()
               ->createBlock('Magento\Cms\Block\Block')
               ->setBlockId('block_identifier')
               ->toHtml();
?>
Display CMS Static Block In CMS Content:

Here the code to show CMS Static Block in any other CMS static block/page in Magento 2,
1

{{block class="Magento\\Cms\\Block\\Block" block_id="block_identifier"}}
Display CMS Static Block In XML:

Here the code to show CMS Static Block in any layout (XML) file in Magento 2,

<referenceContainer name="content">
    <block class="Magento\Cms\Block\Block" name="block_identifier">
        <arguments>
            <argument name="block_id" xsi:type="string">block_identifier</argument>
        </arguments>
    </block>
</referenceContainer>