<?php
  header("Content-type: text/html; charset=utf-8");
  //獲取星期方法
  function get_week($date){
    //強(qiáng)制轉(zhuǎn)換日期格式
    $date_str=date('Y-m-d',strtotime($date));
    //封裝成數(shù)組
    $arr=explode("-", $date_str);
    //參數(shù)賦值
    //年
    $year=$arr[0];
    //月，輸出2位整型，不夠2位右對(duì)齊
    $month=sprintf('%02d',$arr[1]);
    //日，輸出2位整型，不夠2位右對(duì)齊
    $day=sprintf('%02d',$arr[2]);
    //時(shí)分秒默認(rèn)賦值為0；
    $hour = $minute = $second = 0;
    //轉(zhuǎn)換成時(shí)間戳
    $strap = mktime($hour,$minute,$second,$month,$day,$year);
    //獲取數(shù)字型星期幾
    $number_wk=date("w",$strap);
    //自定義星期數(shù)組
    $weekArr=array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
    //獲取數(shù)字對(duì)應(yīng)的星期
    return $weekArr[$number_wk];
  }
  //測(cè)試
  $date="2016-08-20";
  echo get_week($date);
  //星期六
?>