function getthemonth($date){ $firstday = date('Y-m-01', strtotime($date)); $lastday = date('Y-m-d', strtotime("$firstday +1 month -1 day")); return array($firstday,$lastday); $today = date("Y-m-d"); $day = getthemonth($today); echo "当月的第一天: ".$day[0]." 当月的最后一天: ".$day[1]; echo "
";