PHP开发技巧(一)-时间日期友好显示的示例代码

下面就是使时间日期友好显示的代码：

<?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);  
  
?>

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