PHP实现时间日期友好显示实现代码

<?php  /**  * =======================================  * Created by Zhihua_W.  * Author: Zhihua_W  * Date: 2016/11/23 0001  * Time: 下午 5:45  * Project: PHP开发小技巧  * Power: 实现日期时间友好显示  * =======================================  */  /**  * 日期时间友好显示  * @param $time  * @return bool|string  */ function friend_date($time) {  if (!$time) {   return false;  }  $fdate = '';  $d = time() - intval($time);  $ld = $time - mktime(0, 0, 0, 0, 0, date('Y')); //得出年  $md = $time - mktime(0, 0, 0, date('m'), 0, date('Y')); //得出月  $byd = $time - mktime(0, 0, 0, date('m'), date('d') - 2, date('Y')); //前天  $yd = $time - mktime(0, 0, 0, date('m'), date('d') - 1, date('Y')); //昨天  $dd = $time - mktime(0, 0, 0, date('m'), date('d'), date('Y')); //今天  $td = $time - mktime(0, 0, 0, date('m'), date('d') + 1, date('Y')); //明天  $atd = $time - mktime(0, 0, 0, date('m'), date('d') + 2, date('Y')); //后天  if ($d == 0) {   $fdate = '刚刚';  } else {   switch ($d) {    case $d < $atd:     $fdate = date('Y年m月d日', $time);     break;    case $d < $td:     $fdate = '后天' . date('H:i', $time);     break;    case $d < 0:     $fdate = '明天' . date('H:i', $time);     break;    case $d < 60:     $fdate = $d . '秒前';     break;    case $d < 3600:     $fdate = floor($d / 60) . '分钟前';     break;    case $d < $dd:     $fdate = floor($d / 3600) . '小时前';     break;    case $d < $yd:     $fdate = '昨天' . date('H:i', $time);     break;    case $d < $byd:     $fdate = '前天' . date('H:i', $time);     break;    case $d < $md:     $fdate = date('m月d日 H:i', $time);     break;    case $d < $ld:     $fdate = date('m月d日', $time);     break;    default:     $fdate = date('Y年m月d日', $time);     break;   }  }  return $fdate; }   $time = 1442345132; echo friend_date($time);