Group dates in a foreach loop

Question

I want to add a new line in order to group dates within a foreach loop.

Example:

2015-11-05
2015-11-05

2015-11-07

2015-11-10
2015-11-1         


        

Answer 1

One way to do this is to save the previous value and compare it to the current one:

$prev = NULL;
foreach($rows AS $row) {
    $curr = $row['datetime_published'];
    echo "$curr
";
    if ($curr != $prev) {
        echo '
';
        $prev = $curr;
    }
}