<?php echo date("m-d-Y h:m:s")."\n"; echo date("m-d-Y h:m:s",mktime(10,15,35,date("m"),date("d"),date("Y")))."\n"; echo date("m-d-Y h:m:s",mktime(10,15,35,date("m"),date("d")-30,date("Y")))."\n"; ?>這段代碼中mktime函數(shù)怎么到底怎么用的,前面的三個數(shù)據(jù)10,15,35究竟是什么?為什么我改掉這幾個數(shù)據(jù)顯示的結(jié)果還是不變?