/**
* 获取指定日期的前六个月
* 返回一个二维数组
*/
function to_sex_month(){
$today = date("Y-m-d");
$arr = array();
$old_time = strtotime('-5 month',strtotime($today));
for($i = 0;$i < 6; ++$i){
$t = strtotime("+$i month",$old_time);
$arr[] = explode('/',date('Y-m-01',$t).'/'.date('Y-m-',$t).date('t',$t));
}
return $arr;
}
/**
* 计算出两个日期之间的月份
* @author Eric
* @param [type] $start_date [开始日期,如2014-03]
* @param [type] $end_date [结束日期,如2015-12]
* @param string $explode [年份和月份之间分隔符,此例为 - ]
* @param boolean $addOne [算取完之后最后是否加一月,用于算取时间戳用]
* @return [type] [返回是两个月份之间所有月份字符串]
*/
function dateMonths($start_date,$end_date,$explode='-',$addOne=false){
//判断两个时间是不是需要调换顺序
$start_int = strtotime($start_date);
$end_int = strtotime($end_date);
if($start_int > $end_int){
$tmp = $start_date;
$start_date = $end_date;
$end_date = $tmp;
}
//结束时间月份+1,如果是13则为新年的一月份
$start_arr = explode($explode,$start_date);
$start_year = intval($start_arr[0]);
$start_month = intval($start_arr[1]);
$end_arr = explode($explode,$end_date);
$end_year = intval($end_arr[0]);
$end_month = intval($end_arr[1]);
$data = array();
$data[] = $start_date;
$tmp_month = $start_month;
$tmp_year = $start_year;
//如果起止不相等,一直循环
while (!(($tmp_month == $end_month) && ($tmp_year == $end_year))) {
$tmp_month ++;
//超过十二月份,到新年的一月份
if($tmp_month > 12){
$tmp_month = 1;
$tmp_year++;
}
$data[] = $tmp_year.$explode.str_pad($tmp_month,2,'0',STR_PAD_LEFT);
}
if($addOne == true){
$tmp_month ++;
//超过十二月份,到新年的一月份
if($tmp_month > 12){
$tmp_month = 1;
$tmp_year++;
}
$data[] = $tmp_year.$explode.str_pad($tmp_month,2,'0',STR_PAD_LEFT);
}
return $data;
}
/**
* 获取指定月份的第一天开始和最后一天结束的时间戳
* @param int $y 年份 $m 月份
* @return array(本月开始时间,本月结束时间)
*/
function mFristAndLast($y = "", $m = ""){
if ($y == "") $y = date("Y");
if ($m == "") $m = date("m");
$m = sprintf("%02d", intval($m));
$y = str_pad(intval($y), 4, "0", STR_PAD_RIGHT);
$m>12 || $m<1 ? $m=1 : $m=$m;
$firstday = strtotime($y . $m . "01000000");
$firstdaystr = date("Y-m-01", $firstday);
$lastday = strtotime(date('Y-m-d 23:59:59', strtotime("$firstdaystr +1 month -1 day")));
return array(
"firstday" => $firstday,
"lastday" => $lastday
);
}