title: how can I get last week' date range in php?
body: <p>how can I get last week' date range in php ?</p>
  
  <p>see my codes bellow:</p>
  
  <pre><code>&lt;?php 
      function get_last_week_dates(){
          // how can i get the date range last week ?
          // ex: today is 2014-2-8
          // the week date range of last week should be '2014-1-26 ~ 2014-2-1'
      }
  ?&gt;
  </code></pre>