constructor HTML_QuickForm_Renderer_Array::HTML_QuickForm_Renderer_Array()

TRUE: collect all hidden elements into string; FALSE: process them as usual form elements

TRUE: instead of putting an array of labels into the 'label' element of resultant array, create separate keys for them named 'label_$key' where $key is the key in the array of labels (key + 1 if it is numeric). The first element of the array occupies the 'label' element.