gistfile1.rb

# View

<%= form_tag '/flash_cards/create' %>

...other form content e.g. body...

<%= text_field_tag 'line1[body]' %>
<%= check_box_tag 'line1[centred]' %>

<%= text_field_tag 'line2[body]' %>
<%= check_box_tag 'line2[centred]' %>

<%= submit_tag "Submit" %>

# Controller

def create
  lines = Array.new
  line1 = Array.new
  params[:line1].each do |param|
    line1 << param
  end
end