日期函數常用日期取法

<?php
echo "今天:".date("Y-m-d")."<br>";
echo "昨天:".date("Y-m-d",strtotime("-1 day")), "<br>";
echo "明天:".date("Y-m-d",strtotime("+1 day")). "<br>";
echo "一週後:".date("Y-m-d",strtotime("+1 week")). "<br>";
echo "一週零兩天四小時兩秒後:".date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")). "<br>";
echo "下個星期四:".date("Y-m-d",strtotime("next Thursday")). "<br>";
echo "上個週一:".date("Y-m-d",strtotime("last Monday"))."<br>";
echo "一個月前:".date("Y-m-d",strtotime("last month"))."<br>";
echo "一個月後:".date("Y-m-d",strtotime("+1 month"))."<br>";
echo "十年後:".date("Y-m-d",strtotime("+10 year"))."<br>";
?>