title: Strip out HTML and Special Characters
body: <p>I'd like to use any php function or whatever so that i can remove any HTML code and special characters and gives me only alpha-numeric output</p>
  <pre><code>$des = &quot;Hello world)&lt;b&gt; (*&amp;^%$#@! it's me: and; love you.&lt;p&gt;&quot;;
  </code></pre>
  <p>I want the output become <code>Hello world it s me and love you</code> (just Aa-Zz-0-9-WhiteSpace)</p>
  <p>I've tried <code>strip_tags</code> but it removes only HTML codes</p>
  <pre><code>$clear = strip_tags($des); 
  echo $clear;
  </code></pre>
  <p>So is there any way to do it?</p>