how to take variables from other files in php code example

Example 1: get html file data to variable in php

$Vdata = file_get_contents('path/to/YOUR/FILE.php');

Example 2: take file data in variable php

ob_start();

include "yourfile.php";

$myvar = ob_get_clean();

reference :
https://stackoverflow.com/questions/1272228/how-do-i-load-a-php-file-into-a-variable
https://secure.php.net/manual/en/function.ob-get-clean.php