php返回相对时间（如：20分钟前，3天前）的方法

本文实例讲述了php返回相对时间（如：20分钟前，3天前）的方法。分享给大家供大家参考。具体如下：

function plural($num) { if ($num != 1)  return "s";}function getRelativeTime($date) { $diff = time() - strtotime($date); if ($diff<60)  return $diff." 秒".plural($diff)." 前"; $diff = round($diff/60); if ($diff<60)  return $diff." 分钟".plural($diff)." 前"; $diff = round($diff/60); if ($diff<24)  return $diff." 小时".plural($diff)." 前"; $diff = round($diff/24); if ($diff<7)  return $diff." 天".plural($diff)." 前"; $diff = round($diff/7); if ($diff<4)  return $diff." 星期".plural($diff)." 前"; return "on ".date("F j, Y", strtotime($date));}

希望本文所述对大家的php程序设计有所帮助。