How i can convert json to Vmess ( v2ray) in php?

I want encode json code to vmess encryption,how i can encode json to like this code?

example code of vmess encryption:

vmess://eyJhZGQiOiIxMzcuMTg0LjQ3LjgyIiwiYWlkIjoiMCIsImhvc3QiOiIiLCJpZCI6ImE3MjA3ZmE3LTE3MTktNGFkNC04ZmY3LTM4ZmYyZTBhNjlkNSIsIm5ldCI6IndzIiwicGF0aCI6Ii90ZWxlZ3JhbS1pZC1wcml2YXRldnBucyIsInBvcnQiOiI4MCIsInBzIjoiQFNlemFyX1NlYyIsInNjeSI6ImF1dG8iLCJzbmkiOiIiLCJ0bHMiOiIiLCJ0eXBlIjoiIiwidiI6IjIifQ==