if ($altime == "jinri") {$t = time();$first = date('Y-m-d H:i:s', mktime(0, 0, 0, date("m", $t), date("d", $t), date("Y", $t))); // 当天开始时间$last = date('Y-m-d H:i:s', mktime(23, 59, 59, date("m", $t), date("d", $t), date("Y", $t))); // 当天结束时间}if ($altime == "zuotian") {$t = time();$first = date('Y-m-d H:i:s', mktime(0, 0, 0, date("m"), date("d", $t) - 1, date("Y", $t)));$last = date('Y-m-d H:i:s', mktime(23, 59, 59, date("m"), date("d", $t) - 1, date("Y", $t)));}if ($altime == "benzhou") {$timestamp = time();$first = date('Y-m-d H:i:s', strtotime("this week Monday", $timestamp));$last = date('Y-m-d H:i:s', (strtotime(date('Y-m-d H:i:s', strtotime("this week Sunday", $timestamp))) + 24 * 3600 - 1));}if ($altime == "shangzhou") {$timestamp = time();$first = date('Y-m-d', strtotime("last week Monday", $timestamp));$last = date('Y-m-d H:i:s', (strtotime(date('Y-m-d', strtotime("last week Sunday", $timestamp))) + 24 * 3600 - 1));}if ($altime == "benyue") {$date = date("Y-m-d");// 本月第一天$first = date('Y-m-01 0:0:0', strtotime($date));// 本月最后一天$last = date('Y-m-d 23:59:59', strtotime("$first +1 month -1 day"));}if ($altime == "shangyue") {$first = date('Y-m-d H:i:s', mktime(0, 0, 0, date('m') - 1, 1, date('Y')));$last = date('Y-m-d H:i:s', mktime(23, 59, 59, date('m') - 1, date('t', $first), date('Y')));}if ($altime == "benji") {$season = ceil(date('n') / 3);$first = date('Y-m-d H:i:s', mktime(0, 0, 0, ($season - 1) * 3 + 1, 1, date('Y')));$last = date('Y-m-d H:i:s', mktime(0, 0, 0, $season * 3, 1, date('Y')));}if($altime == "shangji") {$season = ceil(date('n') / 3);$first = date('Y-m-d H:i:s', mktime(0, 0, 0, ($season - 2) * 3 + 1, 1, date('Y')));$last = date('Y-m-d H:i:s', mktime(23, 59, 59, ($season - 1) * 3, 1, date('Y')));}if ($altime == "bennian") {$first = date('Y-m-d H:i:s', mktime(0, 0, 0, 1, 1, date('Y')));$last = date('Y-m-d H:i:s', mktime(23, 59, 59, 12, 31, date('Y')));}if ($altime == "shangnian") {$year = date('Y') - 1;$first = date('Y-m-d H:i:s', mktime(0, 0, 0, 1, 1, $year));$last = date('Y-m-d H:i:s', mktime(23, 59, 59, 12, 31, $year));}
今日：jinri
昨天：zuotian
本周：benzhou
上周：shangzhou
本月：benyue
上月：shangyue
本季度：benji
上季度;shangji
本年：bennian
上年：shangnian