在PHP中将时间戳转换为时间

Question

我有这个时间戳PHP代码,它没有显示正确的时间.它总是显示8小时前,当时间假设是几分钟前.

  /**
  * Convert a timestap into timeago format
  * @param time
  * @return timeago
  */  

    public static function timeago($time, $tense = "ago"){
      if(empty($time)) return "n/a";
       $time=strtotime($time);
       $periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
       $lengths = array("60","60","24","7","4.35","12","10");
       $now = time();
         $difference = $now - $time;
         for($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) {
           $difference /= $lengths[$j];
         }
         $difference = round($difference);
         if($difference != 1) {
           $periods[$j].= "s";
         }
       return "$difference $periods[$j] $tense ";
    } 

我真的不明白为什么它不能正常工作

Answer 1

这是我为你写的一个功能.

它使用DateTime类,因此PHP版本必须> = 5.3.0.

阅读函数中的注释以了解其工作原理.

function timeago($time, $tense='ago') {
    // declaring periods as static function var for future use
    static $periods = array('year', 'month', 'day', 'hour', 'minute', 'second');

    // checking time format
    if(!(strtotime($time)>0)) {
        return trigger_error("Wrong time format: '$time'", E_USER_ERROR);
    }

    // getting diff between now and time
    $now  = new DateTime('now');
    $time = new DateTime($time);
    $diff = $now->diff($time)->format('%y %m %d %h %i %s');
    // combining diff with periods
    $diff = explode(' ', $diff);
    $diff = array_combine($periods, $diff);
    // filtering zero periods from diff
    $diff = array_filter($diff);
    // getting first period and value
    $period = key($diff);
    $value  = current($diff);

    // if input time was equal now, value will be 0, so checking it
    if(!$value) {
        $period = 'seconds';
        $value  = 0;
    } else {
        // converting days to weeks
        if($period=='day' && $value>=7) {
            $period = 'week';
            $value  = floor($value/7);
        }
        // adding 's' to period for human readability
        if($value>1) {
            $period .= 's';
        }
    }

    // returning timeago
    return "$value $period $tense";
}

不要忘记设置你工作的时区

date_default_timezone_set('UTC');

用它

echo timeago('1981-06-07'); // 34 years ago
echo timeago(date('Y-m-d H:i:s')); // 0 seconds ago

等等