Meta Query for specific months

Question

You need the 2 digit month number that you want to query on and then use the code below. This should be easy with php (for example, see this post). In the code below $month is the number of the month in a 2 digit format, eg March would be 03.

$start_date = date('Y'.$month.'01'); // First day of the month
$end_date = date('Y'.$month.'t'); // 't' gets the last day of the month

$meta_query = array(
    'key'       => 'event_start_date',
    'value'     => array($start_date, $end_date),
    'compare'   => 'BETWEEN',
    'type'      => 'DATE'
);