We will focus on the first two scenarios, as the third violates copyright laws (DMCA, Berne Convention).
"Site error: The ionCube loader needs to be installed. The encoded file requires ionCube loader for PHP 7.4." ioncube decoder php 74
The topic of decoding ionCube encrypted files—specifically for PHP 7.4—represents a significant turning point in the landscape of PHP security and reverse engineering. While decoding tools for older versions of PHP (5.x and 7.1/7.2) have historically been available, the architecture changes introduced in newer ionCube Loaders have made decoding PHP 7.4 files considerably more difficult and rare. We will focus on the first two scenarios,