title: PHP preg_replace all quotes inside HTML tag
body: <p>I need to do a little fix inside a script and I am bad at preg_replace. I'm sure it'll be easy for many of you.</p>
  
  <p>I need 3 specific or all quotation marks inside HTML tags to be like this: "</p>
  
  <p>so for example: 
  <code>&lt;iframe src=»http://test.test″&gt;»hellohello»&lt;/iframe&gt;</code> 
  needs to become: <code>&lt;iframe src="http://test.test"&gt;»hellohello»&lt;/iframe&gt;</code></p>
  
  <p>my code so far:</p>
  
  <pre><code>        $content = preg_replace("/\&lt;[“]\&gt;/","\"",$content); 
          $content = preg_replace("/\&lt;[»]\&gt;/","\"",$content); 
          $content = preg_replace("/\&lt;[″]\&gt;/","\"",$content); 
  </code></pre>
  
  <p>doesn't work…</p>
  
  <p>thanks for your help!!</p>