- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$time = strtotime(date('Y-m').'-01');
echo date('Y-m-d',$time);
echo '<br>'.$final = date("Y-t-d", strtotime("-1 month", $time));
echo date('m-01-Y 00:00:00',strtotime('this month')) . '<br/>';
echo date('m-t-Y 12:59:59',strtotime('this month')) . '<br/>';
echo '<br>'.$current_month_start_day = strtotime(date('Y-m').'-01');
echo '<br>'.$prev_month_start_day = date("d.m.Y", strtotime("-1 month", $current_month_start_day));
echo '<br>'.$_REQUEST['date_start'] = date("d.m.Y", $current_month_day); // 01.12.2013
echo '<br>'.$_EQUEST['date_end'] = date("t.m.Y", strtotime(date())); // 31.12.2013