PHP method code example to get the current date and the day of the month this Monday is

This article mainly introduces the method of PHP to obtain the current date and the day of the month this Monday is. It involves phptimestamp, date conversion and operation related operation skills. Friends in need can refer to the following

The example in this article describes how PHP obtains the current date and the day of the month this Monday is. Share it with everyone for your reference, the details are as follows:

<?php
  header("content-type:text/html;charset=utf-8");
  date_default_timezone_set(&#39;PRC&#39;);
  function getWeek($unixTime=&#39;&#39;){
    $unixTime=is_numeric($unixTime)?$unixTime:time();
    $weekarray=array(&#39;日&#39;,&#39;一&#39;,&#39;二&#39;,&#39;三&#39;,&#39;四&#39;,&#39;五&#39;,&#39;六&#39;,&#39;七&#39;);
    return "星期".$weekarray[date(&#39;w&#39;,$unixTime)];
  }
  $var=getWeek();
  switch($var){
    case &#39;星期天&#39;:
      $var=time();
      $var2=$var-(84600*6);
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
    case &#39;星期一&#39;:
      $var=time();
      $var2=$var;
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
    case &#39;星期二&#39;:
      $var=time();
      $var2=$var-84600;
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
    case &#39;星期三&#39;:
      $var=time();
      $var2=$var-(84600*2);
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
    case &#39;星期四&#39;:
      $var=time();
      $var2=$var-(84600*3);
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
    case &#39;星期五&#39;:
      $var=time();
      $var2=$var-(84600*4);
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
    case &#39;星期六&#39;:
      $var=time();
      $var2=$var-(84600*5);
      echo "今天是".date("Y-m-d",$var)."号<br/>这个星期一是".date("Y-m-d",$var2)."号";
    break;
  }
?>

The running result is:

今天是2017-03-28号
这个星期一是2017-03-27号

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