Is there a simple method to passing data from one templatefile to another? I'm new to PHP and can't find a simple answer to my problem online. Apologies if this has been answered a million times & thanks in advance.
My Template
<?php
// Declare a variable with the name of the file I want to pull in
$critical_css = 'style';
// Header
get_header();
?>
Header
// Get php file with inline style written inside
<?php get_template_part('/path/to/' . $critical_css); ?>