timeago translate for wordpress

timeago

function timeago(ptime) 
    local etime =os.time() - ptime
    if (etime < 1) then
      return '刚刚'
    end
    local interval_ = {        
       {secs = 12 * 30 * 24 * 60 * 60,str=os.date('年前', ptime)} ,
       {secs = 30 * 24 * 60 * 60     ,str=os.date('个月前', ptime)} ,
       {secs = 7 * 24 * 60 * 60      ,str=os.date('周前', ptime)},
       {secs = 24 * 60 * 60          ,str='天前'},
       {secs = 60 * 60               ,str='小时前'},
       {secs = 60                    ,str='分钟前'},
       {secs = 1                     ,str='秒前'}
    }
    for i=1,#interval_ do
        local d = etime/interval_[i].secs
        if d >= 1 then 
           return math.floor(d)..interval_[i].str
        end
    end
end