获取时间

<?php
 
/**
 
* php 获取时间(今天,昨天,三天内,本周,上周,本月,三年内,半年内,一年内,三年内)
 
*
 
* date:2018-10-12 16:23:01
 
*/
 
 
 
$q = $_GET['q'] ? intval($_GET['q']) : 0;
 
 
 
$text = '';
 
$now = time();
 
 
 
if ($q === 1) {// 今天
 
$text = '今天';
 
$beginTime = date('Y-m-d 00:00:00', $now);
 
$endTime = date('Y-m-d 23:59:59', $now);
 
} elseif ($q === 2) {// 昨天
 
$text = '昨天';
 
$time = strtotime('-1 day', $now);
 
$beginTime = date('Y-m-d 00:00:00', $time);
 
$endTime = date('Y-m-d 23:59:59', $now);
 
} elseif ($q === 3) {// 三天内
 
$text = '三天内';
 
$time = strtotime('-2 day', $now);
 
$beginTime = date('Y-m-d 00:00:00', $time);
 
$endTime = date('Y-m-d 23:59:59', $now);
 
} elseif ($q === 4) {// 本周
 
$text = '本周';
 
$time = '1' == date('w') ? strtotime('Monday', $now) : strtotime('last Monday', $now);
 
$beginTime = date('Y-m-d 00:00:00', $time);
 
$endTime = date('Y-m-d 23:59:59', strtotime('Sunday', $now));
 
} elseif ($q === 5) {// 上周
 
$text = '上周';
 
// 本周一
 
$thisMonday = '1' == date('w') ? strtotime('Monday', $now) : strtotime('last Monday', $now);
 
// 上周一
 
$lastMonday = strtotime('-7 days', $thisMonday);
 
$beginTime = date('Y-m-d 00:00:00', $lastMonday);
 
$endTime = date('Y-m-d 23:59:59', strtotime('last sunday', $now));
 
} elseif ($q === 6) {// 本月
 
$text = '本月';
 
$beginTime = date('Y-m-d 00:00:00', mktime(0, 0, 0, date('m', $now), '1', date('Y', $now)));
 
$endTime = date('Y-m-d 23:39:59', mktime(0, 0, 0, date('m', $now), date('t', $now), date('Y', $now)));
 
} elseif ($q === 7) {// 三月内
 
$text = '三月内';
 
$time = strtotime('-2 month', $now);
 
$beginTime = date('Y-m-d 00:00:00', mktime(0, 0,0, date('m', $time), 1, date('Y', $time)));
 
$endTime = date('Y-m-d 23:39:59', mktime(0, 0, 0, date('m', $now), date('t', $now), date('Y', $now)));
 
} elseif ($q === 8) {// 半年内
 
$text = '半年内';
 
$time = strtotime('-5 month', $now);
 
$beginTime = date('Y-m-d 00:00:00', mktime(0, 0,0, date('m', $time), 1, date('Y', $time)));
 
$endTime = date('Y-m-d 23:39:59', mktime(0, 0, 0, date('m', $now), date('t', $now), date('Y', $now)));
 
} elseif ($q === 9) {// 一年内
 
$text = '一年内';
 
$beginTime = date('Y-m-d 00:00:00', mktime(0, 0,0, 1, 1, date('Y', $now)));
 
$endTime = date('Y-m-d 23:39:59', mktime(0, 0, 0, 12, 31, date('Y', $now)));
 
} elseif ($q === 10) {// 三年内
 
$text = '三年内';
 
$time = strtotime('-2 year', $now);
 
$beginTime = date('Y-m-d 00:00:00', mktime(0, 0, 0, 1, 1, date('Y', $time)));
 
$endTime = date('Y-m-d 23:39:59', mktime(0, 0, 0, 12, 31, date('Y')));
 
}
 
 
 
echo $text;
 
echo '<br />';
 
echo $beginTime;
 
echo '<br />';
 
echo $endTime;

//获取每个月中的开始结束时间

$cyear = floor(date("Y",time()));
$cMonth = floor(date("m",time()));

for($i=0;$i<12;$i++){
    $nMonth = $cMonth-$i;
    $cyear = $nMonth == 0 ? ($cyear-1) : $cyear;
    $nMonth = $nMonth <= 0 ? 12+$nMonth : $nMonth;
    $date = $cyear."-".$nMonth."-1";
    $firstday = date('Y-m-01', strtotime($date));
    $lastday = date('Y-m-t', strtotime($date));

    echo $cyear."年".$nMonth."月";
    echo "第一天:".$firstday;
    echo "最后一天:".$lastday,"";
}