在做业务统计计算的时候难免会遇到时间节点问题，一般会涉及的也就是月份、起始日期，然后再数据库做统计查询的时候就会用到时间戳，简单写了下，把代码分享出来，给大家参考，当然有优化的意见，欢迎交流！
PHP:
/**
* @param $date1
* @param $date2
* @return number
* 计算两个日期相隔月数
*/
function getMonthNum($date1,$date2){
$date1_stamp=strtotime($date1);
$date2_stamp=strtotime($date2);
list($date_1['y'],$date_1['m'])=explode("-",date('Y-m',$date1_stamp));
list($date_2['y'],$date_2['m'])=explode("-",date('Y-m',$date2_stamp));
return abs($date_1['y']-$date_2['y'])*12 +$date_2['m']-$date_1['m'];
}
/**
* php计算两个日期之间相隔月数、每月开始日期、结束日期,开始时间戳，结束时间戳
*/
function get_cal_date($start_date,$end_date){
$month=getMonthNum($start_date,$end_date);
for ($m=0;$m<=$month;$m++){
$start_date=date('Y-m-01', strtotime($start_date));
$now_time=strtotime($start_date." +$m month");
$data[$m]['title']=date('Y-m', strtotime(date("Y-m-d",$now_time)));
$begin_date=date('Y-m-01', strtotime(date("Y-m-d",$now_time)));
$end_date=date('Y-m-d', strtotime("$begin_date +1 month -1 day"));
$data[$m]['begin_date']=$begin_date;
$data[$m]['end_date']=$end_date;
$data[$m]['begin_time']=strtotime($begin_date.' 00:00:00');
$data[$m]['end_time']=strtotime($end_date.' 23:59:59');
}
return $data;
}使用方法：
get_cal_date("2016-07-01","2017-04-08");
返回输出：
array(10) {
[0] => array(5) {
["title"] => string(7) "2016-07"
["begin_date"] => string(10) "2016-07-01"
["end_date"] => string(10) "2016-07-31"
["begin_time"] => int(1467302400)
["end_time"] => int(1469980799)
}
[1] => array(5) {
["title"] => string(7) "2016-08"
["begin_date"] => string(10) "2016-08-01"
["end_date"] => string(10) "2016-08-31"
["begin_time"] => int(1469980800)
["end_time"] => int(1472659199)
}
[2] => array(5) {
["title"] => string(7) "2016-09"
["begin_date"] => string(10) "2016-09-01"
["end_date"] => string(10) "2016-09-30"
["begin_time"] => int(1472659200)
["end_time"] => int(1475251199)
}
[3] => array(5) {
["title"] => string(7) "2016-10"
["begin_date"] => string(10) "2016-10-01"
["end_date"] => string(10) "2016-10-31"
["begin_time"] => int(1475251200)
["end_time"] => int(1477929599)
}
[4] => array(5) {
["title"] => string(7) "2016-11"
["begin_date"] => string(10) "2016-11-01"
["end_date"] => string(10) "2016-11-30"
["begin_time"] => int(1477929600)
["end_time"] => int(1480521599)
}
[5] => array(5) {
["title"] => string(7) "2016-12"
["begin_date"] => string(10) "2016-12-01"
["end_date"] => string(10) "2016-12-31"
["begin_time"] => int(1480521600)
["end_time"] => int(1483199999)
}
[6] => array(5) {
["title"] => string(7) "2017-01"
["begin_date"] => string(10) "2017-01-01"
["end_date"] => string(10) "2017-01-31"
["begin_time"] => int(1483200000)
["end_time"] => int(1485878399)
}
[7] => array(5) {
["title"] => string(7) "2017-02"
["begin_date"] => string(10) "2017-02-01"
["end_date"] => string(10) "2017-02-28"
["begin_time"] => int(1485878400)
["end_time"] => int(1488297599)
}
[8] => array(5) {
["title"] => string(7) "2017-03"
["begin_date"] => string(10) "2017-03-01"
["end_date"] => string(10) "2017-03-31"
["begin_time"] => int(1488297600)
["end_time"] => int(1490975999)
}
[9] => array(5) {
["title"] => string(7) "2017-04"
["begin_date"] => string(10) "2017-04-01"
["end_date"] => string(10) "2017-04-30"
["begin_time"] => int(1490976000)
["end_time"] => int(1493567999)
}
}
