php实现星期X转换时间戳的函数

<?

function getTimeFromWeek($dayNum){

    //$dayNum:0-6

    $curDayNum=date("w");

    if($dayNum>$curDayNum) $timeFlag="last ";

    elseif($dayNum==$curDayNum) $timeFlag="";

    //如果要本周星期X未到时用本周的星期X else $timeFlag="next";

    else $timeFlag="last ";//本周星期X未到时用上周的星期X(让数据不为空)

    $arryWeekDay = array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');

    $timeStamp=strtotime("$timeFlag"."$arryWeekDay[$dayNum]");

    return $timeStamp;

}

echo date("Y-m-d l",getTimeFromWeek(0));echo "<br>";

echo date("Y-m-d l",getTimeFromWeek(1));echo "<br>";

echo date("Y-m-d l",getTimeFromWeek(2));echo "<br>";

echo date("Y-m-d l",getTimeFromWeek(3));echo "<br>";

echo date("Y-m-d l",getTimeFromWeek(4));echo "<br>";

echo date("Y-m-d l",getTimeFromWeek(5));echo "<br>";

echo date("Y-m-d l",getTimeFromWeek(6));echo "<br>";