php返回當前日期或者指定日期是星期幾

PHP星期幾獲取代碼：

date("l"); //data就可以獲取英文的星期比如Sunday
date("w"); //這個可以獲取數字星期比如123，注意0是星期日

</pre> 獲取中文星期幾：
$weekarray=array("日","一","二","三","四","五","六"); //先定義一個數組
echo "星期".$weekarray[date("w")];

</pre> 獲取指定日期是：
$weekarray=array("日","一","二","三","四","五","六");
echo "星期".$weekarray[date("w","2011-11-11")];