find missing dates from date range

Question

I have query regarding get the dates which are not exists in database table.

I have below dates in database.

2013-08-02
2013-08-02
2013-08-02
2013-08         


        

Answer 1

This is how i would do it:

$db_dates = array (
'2013-08-02',
'2013-08-03',
'2013-08-05',
'2013-08-08',
'2013-08-09',
'2013-08-10',
'2013-08-13'
);
$missing = array();
$month = "08";
$year = "2013";
$day_start = 1;
$day_end = 14
for ($i=$day_start; $i<$day_end; $i++) {
    $day = $i;
    if ($i<10) {
        $day = "0".$i;  
    }
    $check_date = $year."-".$month."-".$day;
    if (!in_array($check_date, $db_dates)) {
        array_push($missing, $check_date);  
    }
}
print_r($missing);

I made it just to that interval but you can just define another interval or make it work for the whole year.