title: get random sentences from a paragraph
body: <p>Suppose i have a paragraph like below</p>
  
  <pre><code>This is sentence 1.This is sentence 2.This is sentence 3.This is sentence 4.This is sentence 5.This is sentence 6.
  </code></pre>
  
  <p>I need to get random 3 sentence from above paragraph.which results something like below</p>
  
  <pre><code>This is sentence 5.This is sentence 1.This is sentence 3.
  </code></pre>
  
  <p>i know its possible with explode.Is there any easy way to do it ?</p>
  
  <pre><code>$game = explode($string, ".")
  shuffle($game);
  </code></pre>