Loop through all months in a date range?

If I have a start date (say 2009-02-01) and an end date (say 2010-01-01), how can I create a loop to go through all the dates (months) in the range?

Answer

Try

$start = $month = strtotime('2009-02-01');
$end = strtotime('2011-01-01');
while($month < $end)
{
     echo date('F Y', $month), PHP_EOL;
     $month = strtotime("+1 month", $month);
}

Mind the note http://php.net/manual/de/datetime.formats.relative.php

Relative month values are calculated based on the length of months that they pass through. An example would be “+2 month 2011-11-30”, which would produce “2012-01-30”. This is due to November being 30 days in length, and December being 31 days in length, producing a total of 61 days.

As of PHP5.3 you can use http://www.php.net/manual/en/class.dateperiod.php