PHP script execution method
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2720488/how-exactly-is-a-php-script-executed">How exactly is a PHP script executed?</a>  </p>
</blockquote>



<p>How does a php script gets executed at the server side? I would like to know if php has life cycle like jsp.</p>
