PHP日期实例 php获取今天、昨天、明天的日期

<?php
/**
* 取得今天、昨天、明天的日期
* edit: www.jbxue.com
*/
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 "一周后:".date("Y-m-d",strtotime("+1 week")). "<br>";      
echo "一周零两天四小时两秒后:".date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")). "<br>";      
echo "下个星期四:".date("Y-m-d",strtotime("next Thursday")). "<br>";      
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."<br>";      
echo "一个月前:".date("Y-m-d",strtotime("last month"))."<br>";      
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."<br>";      
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."<br>";     
?>

date("l");
//data就可以获取英文的星期比如Sunday
date("w");
//这个可以获取数字星期比如123，注意0是星期日

$weekarray=array("日","一","二","三","四","五","六");
echo "星期".$weekarray[date("w")];

$weekarray=array("日","一","二","三","四","五","六");
echo "星期".$weekarray[date("w","2011-11-11")];