PHP取得時間差

PHP取得時間差,我們在開發過程中，這是一個經常使用到的函數，比如說我們想查某個時間段的數據，那就要用到這個函數了。

實例一：

/**
 * 功能：获取时间差
 * @param int $time
 * @return string 时间差值
 */
function tranTime($time) {
    $rtime = date("m-d H:i",$time);
    $htime = date("H:i",$time);
 
    $time = time() - $time;
 
    if ($time < 60) {
        $str = &#39;刚刚&#39;;
    }
    elseif ($time < 60 * 60) {
        $min = floor($time/60);
        $str = $min.&#39;分钟前&#39;;
    }
    elseif ($time < 60 * 60 * 24) {
        $h = floor($time/(60*60));
        $str = $h.&#39;小时前 &#39;.$htime;
    }
    elseif ($time < 60 * 60 * 24 * 3) {
        $d = floor($time/(60*60*24));
        if($d==1)
           $str = &#39;昨天 &#39;.$rtime;
        else
           $str = &#39;前天 &#39;.$rtime;
    }
    else {
        $str = $rtime;
    }
    return $str;
}

實例二：

function time_tran($the_time){
   $now_time = date("Y-m-d H:i:s",time()+8*60*60);
   $now_time = strtotime($now_time);
   $show_time = strtotime($the_time);
   $dur = $now_time - $show_time;
   if($dur < 0){
    return $the_time;
   }else{
    if($dur < 60){
     return $dur.&#39;秒前&#39;;
    }else{
     if($dur < 3600){
      return floor($dur/60).&#39;分钟前&#39;;
     }else{
      if($dur < 86400){
       return floor($dur/3600).&#39;小时前&#39;;
      }else{
       if($dur < 259200){//3天内
        return floor($dur/86400).&#39;天前&#39;;
       }else{
        return $the_time;
       }
      }
 }

實例三：

function format_date($time){
    $t=time()-$time;
    $f=array(
        '31536000'=>'年',
        '2592000'=>'个月',
        '604800'=>'星期',
        '86400'=>'天',
        '3600'=>'小时',
        '60'=>'分钟',
        '1'=>'秒'
    );
    foreach ($f as $k=>$v)    {
        if (0 !=$c=floor($t/(int)$k)) {
            return $c.$v.'前';
        }
    }
}

實例四：

function formatTime($date) {
$str = '';
$timer = strtotime($date);
$diff = $_SERVER['REQUEST_TIME'] - $timer;
$day = floor($diff / 86400);
$free = $diff % 86400;
if($day > 0) {
return $day."天前";
}else{
if($free>0){
$hour = floor($free / 3600);
$free = $free % 3600;
if($hour>0){
return $hour."小时前";
}else{
if($free>0){
$min = floor($free / 60);
$free = $free % 60;
if($min>0){
return $min."分钟前";
}else{
if($free>0){
return $free."秒前";
}else{
return '刚刚';
}
}
}else{
return '刚刚';
}
}
}else{
return '刚刚';
}
}
}

例子