I'd like to create a string out of multiple date.
$dates_group1 = array('2015-10-30', '2015-10-31', '2015-11-01');
$dates_group2 = array('2015-10-31', '2015-10-01', '2015-11-02');
$dates_group3 = array('2015-10-29', '2015-10-31', '2015-11-01');
Oct 30-31, Nov 01
Oct 31, Nov 1-2
Oct 29,31, Nov 1
Is there any php function to do that? It seems like it happen pretty often.