CODE EXAMPLE FOR PHP

Get page title, excerpt or content by Name of the Page

<?php 
$page_name = get_page_by_title( 'About' ); // here About is page name.


echo $page_title = $page_name->post_title;

echo $page_excerpt = $page_name->post_excerpt;

echo $page_content = $page_name->post_content;
?>