Can these files be decoded?

Hello,
All your files are perfectly decompile, you will find a first part of one of your files decrypted, to receive all the rest, please place an order on our online store, you will also find our special prices by quantity of files.
https://www.dezender.net/shop/product-details.html

Before I give you this files, I would like to have your validation on this GOTO layer of protection.
They are executable, but make it difficult for you to change them.

The team DeZender

Filename "archive.php" :
https://pastebin.com/UUTHTrvh