title: mb_detect_encoding showing the same encoding
body: <p>I have a weird problem , the following code :</p>
  
  <pre><code>$str = "נסיון" // &lt;--- Hebrew chars
  echo mb_detect_encoding ($str)."&lt;br&gt;&lt;br&gt;&lt;br&gt;";
  $str = iconv (mb_detect_encoding($str),'UCS-2BE',$str);
  echo mb_detect_encoding ($str)."&lt;br&gt;&lt;br&gt;&lt;br&gt;";
  </code></pre>
  
  <p>This will output : </p>
  
  <p>UTF-8</p>
  
  <p>UTF-8</p>
  
  <p>This code is written in a file that's encoded (using Notepad++) in UTF-8 Without BOM, trying other encodings and didn't work.</p>
  
  <p>I also tried converting the string using :</p>
  
  <pre><code>$str = mb_convert_encoding($str,'UCS-2BE');
  </code></pre>
  
  <p>But that didn't work either. Any insights?</p>