title: Get selected key/value of a select box using php
body: <p>how can I get the selected key and value of a HTML select box using php?</p>
  
  <pre><code>&lt;select&gt;
      &lt;option value="KEY"&gt;VALUE&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>php code ?</p>