例1
直接把日期转换
代码如下 | 复制代码 |
function daysbetweendates($date1, $date2){ $date1 = strtotime($date1); $date2 = strtotime($date2); $days = ceil(abs($date1 - $date2)/86400); return $days; } |
例2
代码如下 | 复制代码 |
<?php functionmaketime($date) { list($year,$month,$day) = explode('-',$date); returnmktime(0,0,0,$month,$day,$year); } $date1 = '2007-01-08'; $date2 = '2007-03-01'; $d = (maketime($date2) - maketime($date1)) / (3600*24); echo'相差$d 天'; ?> |
例3
PHP实现两个日期间隔的年、月、周、日数的计算
代码如下 | 复制代码 |
<?php 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<7){ //如果小于7天直接返回天数 $result['daily'] = $extend; }elseif($extend<=31){ //小于28天则返回周数,由于闰年2月满足了 if($stop==strtotime($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')); ?> |
时间: 2024-10-24 06:02:26