RE: array variabe reference failing.

I have solved this issue:

There was another file at the referenced at the bottom of the error_log that was not given the correct path for require.
I would expect that that error would have been listed in error_log before the error I am asking about in the original
post.

Thanks for time and attention
JK

original query message:

I have this entry in error_log on my remote site:

PHP Notice:  Undefined variable: _globalJS in /home/jekillen/public_html/oldSite/view/classes/controlerClassGLBS.php on line 55

in controllerClassGLBS.php I have
$_globalJS = array(); // js files to be sourced throughout the site
$_globalJS[''] = '';

Why is $_globalJS not being seen?

PHP Version 7.4.27

On my local dev server is PHP Version 7.1.33
and without any change it works as expected.