title: HTML form with windows cyrillic button's names doesn't work on OSX
body: <p>I installed a site locally on OSX. The site was developed under windows and have cyrillic (Windows) encoding for some string values.</p>
  
  <p>I noted that some buttons with cyrillic values wouldn't work until I change the value to english. The button looks for this, for example:</p>
  
  <pre><code>&lt;form action="{$REQUEST_URI}" method="POST" name="addForm" id="addForm"&gt;
  ...
  &lt;td colspan="2" align="center"&gt;&lt;input type="submit" name="addDo" value="Добавить" class="btn"&gt;&lt;/td&gt;
  ...
  &lt;/form&gt;
  </code></pre>
  
  <p>and in php I get void (false) string here: </p>
  
  <pre><code>$addDo = $_POST['addDo'];
  if($addDo)
  ...
  </code></pre>
  
  <p>When I change it to</p>
  
  <pre><code> &lt;td colspan="2" align="center"&gt;&lt;input type="submit" name="addDo" value="Add" class="btn"&gt;&lt;/td&gt;
  </code></pre>
  
  <p>It starts to work properly.</p>
  
  <p>Why can this happen? 
  The site is not my to change, therefore the question is <strong>How can I change my OSX setup to make this site works like on Windows?</strong></p>
  
  <p>P.S. This html file is fetched from php module by smarty:</p>
  
  <pre><code>$smarty-&gt;fetch('login.html');
  </code></pre>