In A.php I incorporate config.php and B.php:

include_once("path/to/config.php");
include_once("path/to/B.php");
B.php is nonexclusive content utilized by different contents. I couldn't say whether script, which included B.php, additionally included config.php so in B.php there is

include_once("path/to/config.php");
The issue is that in A.php I can peruse every one of the factors from config.php, however in B.php they aren't set. Assuming I do print_r(get_included_files()) in B.php, I can see that config.php is incorporated.

What is causing this? How might I appropriately incorporate that config.php so it will be accessible in B.php (and different contents included by A.php...)?

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