php时间轴函数代码：php日期生成时间轴的实现代码

<?php
/**
* 时间轴函数, Unix 时间戳
* @param int $time 时间
*/
function TranTime($time) {
//$time = strtotime($time);
$nowTime = time ();
$message = '';
//一年前
if (idate ( 'Y', $nowTime ) != idate ( 'Y', $time )) {
$message = date ( 'Y年m月d日', $time );
}
else {
//同一年
$days = idate ( 'z', $nowTime ) - idate ( 'z', $time );
switch(true){
//一天内
case (0 == $days):
$seconds = $nowTime - $time;
//一小时内
if ($seconds < 3600) {
//一分钟内
if ($seconds < 60) {
if (3 > $seconds) {
$message = '刚刚';
} else {
$message = $seconds . '秒前';
}
}
$message = intval ( $seconds / 60 ) . '分钟前';
}
$message = idate ( 'H', $nowTime ) - idate ( 'H', $time ) . '小时前';
break;
//昨天
case (1 == $days):
$message = '昨天' . date ( 'H:i', $time );
break;
//前天
case (2 == $days):
$message = '前天 ' . date ( 'H:i', $time );
break;
//7天内
case (7 > $days):
$message = $days . '天前';
break;
//超过7天
default:
$message = date ( 'n月j日 H:i', $time );
break;
}
}
return $message;
}