Are there adequate libraries in this world for encoding / decoding AMF in php?

Question

PHP

We need a simple and minimalistic library for encoding and decoding data in the AMF format.
I don't need any 100-megabyte frameworks. It is necessary: ​​I threw the lib into a folder, called the function and got the result.
Amfphp is not suitable. php-amf3 of the current version was compiled with an error and does not work.