PHP中时间戳与日期之间的转换程序

strtotime(“today”)

<?php
echo date("Y/m/d");
echo "<br />";
echo date("Y.m.d");
echo "<br />";
echo date("Y-m-d");
?>

date("Y-m-d H:i",$unixtime)

function transTime($ustime) {           

　　$ytime = date("Y-m-d H:i",$ustime);             

　　$rtime = date("n月j日 H:i",$ustime);           

　　$htime = date("H:i",$ustime);           

　　$time = time() - $ustime;           

　　$todaytime = strtotime("today");           

　　$time1 = time() - $todaytime;                           

　　if($time < 60){                   

　　　　$str = '刚刚';           

　　}else if($time < 60 * 60){                            

　　　　$min = floor($time/60);                   

　　　　$str = $min.'分钟前';           

　　}else if($time < $time1){                   

　　　　$str = '今天 '.$htime;           

　　}else{                   

　　　　$str = $rtime;           

　　}             

　　return $str;

}