Why is form_dropdown not named form_select?

PHP Code:

<?php
// MY_form_helper.php
function form_select($data = '', $options = array(), $selected = array(), $extra = '')
{
  return form_dropdown($data, $options, $selected, $extra);
} 


Thanks for that, but I already added that exact piece of code

So I have now added an alias to MY_form_helper.