php计算前几天的函数实现方法是:首先创建一个PHP示例文件;然后定义一个“time_tran”方法;接着通过“return floor($dur/86400).'天前';”方式返回几天前的结果即可。
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php计算几分钟前、几小时前、几天前的几个函数
一、函数实现
实例1:
function time_tran($the_time){ $now_time = date("Y-m-d H:i:s",time()+8*60*60); $now_time = strtotime($now_time); $show_time = strtotime($the_time); $dur = $now_time - $show_time; if($dur < 0){ return $the_time; }else{ if($dur < 60){ return $dur.'秒前'; }else{ if($dur < 3600){ return floor($dur/60).'分钟前'; }else{ if($dur < 86400){ return floor($dur/3600).'小时前'; }else{ if($dur < 259200){//3天内 return floor($dur/86400).'天前'; }else{ return $the_time; } } }
实例2:
<?php function format_date($time){ $t=time()-$time; $f=array( '31536000'=>'年', '2592000'=>'个月', '604800'=>'星期', '86400'=>'天', '3600'=>'小时', '60'=>'分钟', '1'=>'秒' ); foreach ($f as $k=>$v) { if (0 !=$c=floor($t/(int)$k)) { return $c.$v.'前'; } } }
实例3:
function formatTime($date) { $str = ''; $timer = strtotime($date); $diff = $_SERVER['REQUEST_TIME'] - $timer; $day = floor($diff / 86400); $free = $diff % 86400; if($day > 0) { return $day."天前"; }else{ if($free>0){ $hour = floor($free / 3600); $free = $free % 3600; if($hour>0){ return $hour."小时前"; }else{ if($free>0){ $min = floor($free / 60); $free = $free % 60; if($min>0){ return $min."分钟前"; }else{ if($free>0){ return $free."秒前"; }else{ return '刚刚'; } } }else{ return '刚刚'; } } }else{ return '刚刚'; } } }
实例4:
function time_tran($the_time){ $now_time = date("Y-m-d H:i:s",time()+8*60*60); $now_time = strtotime($now_time); $show_time = strtotime($the_time); $dur = $now_time - $show_time; if($dur < 0){ return $the_time; }else{ if($dur < 60){ return $dur.'秒前'; }else{ if($dur < 3600){ return floor($dur/60).'分钟前'; }else{ if($dur < 86400){ return floor($dur/3600).'小时前'; }else{ if($dur < 259200){//3天内 return floor($dur/86400).'天前'; }else{ return $the_time; } } } } } }