title: var_dump(str_replace) works but var_dump($var) doesn't
body: <p>So I have this:</p>
  
  <pre><code>print_r($test);
  </code></pre>
  
  <p>it returns <code>'E14'</code></p>
  
  <p>Then if I do this:</p>
  
  <pre><code>    var_dump(str_replace("E","",$test));
  </code></pre>
  
  <p>it returns <code>string(4) "'14'"</code></p>
  
  <p>Everything nice until:</p>
  
  <pre><code>str_replace("E","",$test);
  var_dump($test);
  </code></pre>
  
  <p>that returns: <code>string(5) "'E14'"</code></p>
  
  <p>How am I supposed to make this work?</p>
  
  <p>Thank you.</p>