将时间以距今多久的形式表示,PHP,js双版本

废话不多说直接上代码。
PHP FOR Smarty
<div class="codetitle"><a style="CURSOR: pointer" data="10544" class="copybut" id="copybut10544" onclick="doCopy('code10544')"> 代码如下:<div class="codebody" id="code10544">
Name: time_ago
Purpose: 将时间戳专为距当前时间的表现形式
1分钟内按秒
1小时内按分钟显示
1天内按时分显示
3天内以昨天，前天显示
超过3天显示具体日期

@author Peter Pan
@param int $time input int
*/
function smarty_modifier_time_ago($time) {
$time_deff = time() - $time;
$retrun = '';
if ($time_deff >= 259200) {
$retrun = date('Y-m-d H:i',$time);
} else if ($time_deff >= 172800) {
$retrun = "前天 " . date('H:i',$time);
} else if ($time_deff >= 86400) {
$retrun = "昨天" . date('H:i',$time);
} else if ($time_deff >= 3600) {
$hour = intval($time_deff / 3600);
$minute = intval(($time_deff % 3600) / 60);
$retrun = $hour . '小时';
if ($minute > 0) {
$retrun .= $minute . '分钟';
}
$retrun .= '前';
} else if ($time_deff >= 60) {
$minute = intval($time_deff / 60);
$second = $time_deff % 60;
$retrun = $minute . '分';
if ($second > 0) {
$retrun .= $second . '秒';
}
$retrun .= '前';
}else{
$retrun = $time_deff.'秒前';
}
return $retrun;
}

Javascript
JS比较复杂一点，分为3个函数实现
<div class="codetitle"><a style="CURSOR: pointer" data="2259" class="copybut" id="copybut2259" onclick="doCopy('code2259')"> 代码如下:<div class="codebody" id="code2259">
/
字符串填充
@param string str 要进行填充的字符串
@param int len 目标字符串长度
@param str chr 用于填充的字符 默认为空格
@param str dir 填充位置 left|right|both 默认为right
/
function strPad(str,len,chr,dir){
str = str.toString();
len = (typeof len == 'number') ? len : 0;
chr = (typeof chr == 'string') ? chr : ' ';
dir = (/left|right|both/i).test(dir) ? dir : 'right';
var repeat = function(c,l) {
var repeat = '';
while (repeat.length < l) {
repeat += c;
}
return repeat.substr(0,l);
}
var diff = len - str.length;
if (diff > 0) {
switch (dir) {
case 'left':
str = '' + repeat(chr,diff) + str;
break;
case 'both':
var half = repeat(chr,Math.ceil(diff / 2));
str = (half + str + half).substr(1,len);
break;
default:
str = '' + str + repeat(chr,diff);
}
}
return str;
}
/
格式化日期
类似php Date函数，传入Unix 时间戳（秒级）返回指定格式
格式(不区分大小写)：
y 表示4位年份
m 表示2位月份
d 表示2位日
h 表示2位时
i 表示2位分
s 表示2位秒
/
function formatDate(format,timestamp) {
var date = new Date(parseInt(timestamp) * 1000);
var year = date.getFullYear();
var month = date.getMonth();
var day = date.getDate();
var hour = date.getHours();
var minute = date.getMinutes();
var second = date.getSeconds();
month = strPad(month,2,'0','left');
day = strPad(day,'left');
hour = strPad(hour,'left');
minute = strPad(minute,'left');
second = strPad(second,'left');
format = format.replace(/y/gi,year);
format = format.replace(/m/gi,month);
format = format.replace(/d/gi,day);
format = format.replace(/h/gi,hour);
format = format.replace(/i/gi,minute);
format = format.replace(/s/gi,second);
return format;
}
function timeAgo(time) {
var nowTime = Date.parse(new Date()) / 1000;
var time_deff = nowTime - time;
retrun = '';
if (time_deff >= 259200) {
retrun = formatDate('Y-m-d H:i',time);
} else if (time_deff >= 172800) {
retrun = "前天 " + formatDate('H:i',time);
} else if (time_deff >= 86400) {
retrun = "昨天" + formatDate('H:i',time);
} else if (time_deff >= 3600) {
hour = parseInt(time_deff / 3600);
minute = parseInt((time_deff % 3600) / 60);
retrun = hour + '小时';
if (minute > 0) {
retrun += minute + '分钟';
}
retrun += '前';
} else if (time_deff >= 60) {
minute = parseInt($time_deff / 60);
second = time_deff % 60;
retrun = minute + '分';
if (second > 0) {
retrun += second + '秒';
}
retrun += '前';
}else{
retrun = time_deff +'秒前';
}
return retrun;
}

（编辑：李大同）

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