[flashmob]

I'm also one of those who switched from PHP to Go and now I have quite a bit of legacy PHP code that just works and don't have time to rewrite.

My solution:

Use a Go FastCGI client library to call PHP by talking directly to php-fpm. It saves on the HTTP request overhead and no need to run a web server. Actually, php-fpm is a decent application server itself.

Edit: Here's a link to example code: https://github.com/tomasen/fcgi_client