将UNIX时间戳的PHP数组显示为特定格式的字符串

Question

I currently have this code:

$dates = array();
foreach($data['sc_event_dates'] as $date) {
    if($date > time()) {
        $dates[] = date( empty($dates) ? "D d M": "d M", $date);
    }
}
echo implode(", ", $dates);

And it displays something like this:

Thu 11 Aug, 18 Aug, 25 Aug, 01 Sep, 08 Sep, 15 Sep

But what I need to do group the dates of each month so the output would look like this:

Thu 11, 18, 25 Aug, 01, 08, 15 Sep

$data['sc_event_dates'] holds an array of unix timestamps and is ordered in ascending order.

Also dates that are before current time need to be ignored.

Here is some example data:

Array
(
    [0] => 1313020800
    [1] => 1313625600
    [2] => 1314230400
    [3] => 1314835200
    [4] => 1315440000
    [5] => 1316044800
)

Can any one help alter my code, or produce new code, to get my desired output?

Answer 1

$dates = array();
foreach($data['sc_event_dates'] as $key => $date) {
    if($date > time()) {

        $next = ++$key;
        $format = 'd';

        if( empty($dates) ) {

            $format = 'D '.$format;
        }

        if( !isset( $data['sc_event_dates'][$next] ) || date('n', $date) != date('n', $data['sc_event_dates'][$next]) ) {

            $format .= ' M';
        }

        $dates[] = date( $format, $date);
    }
}
echo implode(", ", $dates);