shared memory? How to share an array?

My controller gets some data from DynamoDB into an array. I need to use that data in a MyReport.php file that is sitting in /assets. Is there anything analagous to "shared memory"?  My controller is loading up an array with data it got from dynamoDB. This array can be 1000 rows or more. If I make this array GLOBAL or push it into $_SERVER in my controller, will I be able to access it from /assets/MyReport.php? Any idea where to stick this array?

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