title: How to auto submit a form just on the change of drop down using php
body: <p>How do you auto submit a form  just on the change of drop down using PHP? i.e. the form should be automatically submitted whenever some one selects a value from the select box.</p>
  
  <p>I know it can be done using jQuery and others but I want it to be done only through <code>PHP</code>. Is there a way to do this?</p>