Ruby on Rails
PhpArray_count_values

This was a nice conside one to generate a Hash count from an Array.

array = [1, "hello", 1, "world", "hello"]
counts = {}
array.each do |value|
  counts[value] ||= 0
  counts[value] += 1
end

Here it is as an Array method:

class Array
  def count_values
    counts = {}
    each do |value|
      counts[value] ||= 0
      counts[value] += 1
    end
    counts
  end
end

Here’s the php.net example:

array = [1, "hello", 1, "world", "hello"]
p array.count_values