ionCube version 12+ (which supports PHP 8.1) uses dynamic keys and bytecode obfuscation . This means the original source code (variable names, comments, etc.) is physically gone and cannot be perfectly restored by a generic script.
This write-up covers the reality of decoding ionCube PHP 8.1 files, why "full" decoders are rarely publicly available, and the mechanisms behind the encryption. ioncube decoder php 81 full
If your goal is to turn encoded .php files back into readable source code, there is no official "full" decoder. ionCube is a , meaning it compiles PHP into a format that the server executes directly, rather than just "hiding" the text. ionCube version 12+ (which supports PHP 8
: Downloading "decoder" software from unofficial forums often results in malware infections or backdoors being installed on your machine. If your goal is to turn encoded