Site Wide Variables

We tend to do these things as shared regions. Set it up on one page, make the region shared and then use the same region on other necessary pages.

Does this give me the ability to do something like the following :

<?php

    $google = new \stdClass();
    $google->app = [
        "secret" => "thisismysecretkey",
        "app" => "this is my app id"
    ];
    $google->profile = [
        "url" => [
            "author" => "author URL",
            "publisher" => "publisher URL"
        ]
    ];
?>

And so on to then access certain properties of my Google Object where needed for any reason? Or am I taking the Shared Region too far?