mktime mktime $t=mktime(22,0,0,8,31,1983); $time=time()-$t; echo '李文凯活了'.$time.'秒<br>';echo '李文凯活了'.($time/60).'分<br>';echo '李文凯活了'.($time/60/60).'小时<br>';echo '李文凯活了'.($time/60/60/24).'天<br>';echo '李文凯活了'.($time/60/60/24/7).'周<br>';