-
-
/** - * 计算两个日期间隔的年、月、周、日数
- * edit bbs.it-home.org
- */
- function format($a,$b){
- //检查两个日期大小，默认前小后大，如果前大后小则交换位置以保证前小后大
- if(strtotime($a)>strtotime($b)) list($a,$b)=array($b,$a);
- $start = strtotime($a);
- $stop = strtotime($b);
- $extend = ($stop-$start)/86400;
- $result['extends'] = $extend;
- if($extend$result['daily'] = $extend;
- }elseif($extendif($stop==strtotime($a.'+1 month')){
- $result['monthly'] = 1;
- }else{
- $w = floor($extend/7);
- $d = ($stop-strtotime($a.'+'.$w.' week'))/86400;
- $result['weekly'] = $w;
- $result['daily'] = $d;
- }
- }else{
- $y= floor($extend/365);
- if($y>=1){ //如果超过一年
- $start = strtotime($a.'+'.$y.'year');
- $a = date('y-m-d',$start);
- //判断是否真的已经有了一年了，如果没有的话就开减
- if($start>$stop){
- $a = date('y-m-d',strtotime($a.'-1 month'));
- $m =11;
- $y--;
- }
- $extend = ($stop-strtotime($a))/86400;
- }
- if(isset($m)){
- $w = floor($extend/7);
- $d = $extend-$w*7;
- }else{
- $m = isset($m)?$m:round($extend/30);
- $stop>=strtotime($a.'+'.$m.'month')?$m:$m--;
- if($stop>=strtotime($a.'+'.$m.'month')){
- $d=$w=($stop-strtotime($a.'+'.$m.'month'))/86400;
- $w = floor($w/7);
- $d = $d-$w*7;
- }
- }
- $result['yearly'] = $y;
- $result['monthly'] = $m;
- $result['weekly'] = $w;
- $result['daily'] = isset($d)?$d:null;
- }
- return array_filter($result);
- }
print_r(format('2012-10-1','2012-12-15'));
- ?>
-
输出结果：
Array([extends]=>75[monthly]=>2[weekly]=>2)
2，php 查询某天所在的周数及对应周的起始日期
-
-
/**
- * @file
- * @version 1.1
- */
- //获取某个日期的 周数、周对应的开始结束时间
- private function getWeekStartEndDay($day)
- {
- $g = strftime("%u",strtotime($day));
- return array('week_num'=>strftime("%V",strtotime($day)),'week_start_day'=>strftime('%Y-%m-%d',strtotime($day)-($g-1)*86400),'week_start_day_cn'=>strftime('%Y年%m月%d日',strtotime($day)-($g-1)*86400),'week_end_day'=>strftime('%Y-%m-%d',strtotime($day) + (7-$g)*86400),'week_end_day_cn'=>strftime('%Y年%m月%d日',strtotime($day) + (7-$g)*86400));
- }
- ?>
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