Can someone help me sort this array ascending by the ‘formattedDate’ field?
$data = array(
array(formattedDate => 22, open => 1, sent => 2),
array(formattedDate => 3, open => 2, sent => 2),
array(formattedDate => 16, open => 5, sent => 2),
array(formattedDate => 17, open => 1, sent => 2)
);
Thanks