小编Ron*_*nie的帖子

请解释这个Ruby代码,以便我可以将其转换为PHP:

data = Hash.new({})
mysql_results.each { |r| data[r['year']][r['week']] = r['count'] }

(year_low..year_high).each do |year|
  (1..52).each do |week|
   puts "#{year} #{week} #{data[year][week]}"
  end
end