rack-php/config.ru at master · creationix/rack-php · GitHub

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require 'rubygems'
require 'json'

class RubyBridge
  def call(env)
    response = []
    data = JSON.dump(env)
    IO.popen("./rackup.php", 'r+') do |io|
      io.write data
      io.close_write
      response = io.read
    end
    JSON.load(response)
  end
end

class RubyMiddlewareBridge
  def initialize(app)
    @app = app
  end

  def call(env)
    env['rack.ruby_bridge_response'] = @app.call(env)

    response = []
    data = JSON.dump(env)
    IO.popen("./rackup.php", 'r+') do |io|
      io.write data
      io.close_write
      response = io.read
    end
    JSON.load(response)
  end
end

use Rack::Reloader
run Rack::Cascade.new([
  Rack::File.new('public'),
  RubyBridge.new
])