on a server, you don't need a decoder. You need the correct version of the ionCube Loader How to Make Encoded Code Work on PHP 5.6
If someone claims their decoder "only works on PHP 5.6," it’s a massive red flag. Modern decoding tools (even theoretical ones) don’t care about the target PHP version; they care about the encoder version. Tying a decoder to an obsolete, insecure PHP version suggests the "decoder" is actually an exploit for a long-patched PHP bug—useless on any maintained system. ioncube decoder v10x php 56 work
: The loader must match your PHP build's architecture (32-bit vs. 64-bit). Using a 64-bit loader on a 32-bit PHP installation will cause a failure. Installation Steps on a server, you don't need a decoder