This topics show you, how you can disable layout

to disable layout use this line:

$this->_helper->layout->disableLayout();

php zend layout helper

This topics show you, how you can change a default layout

to change layout use this line:

 $this->_helper->layout->setLayout('admin');

php zend layout helper

This example show you how we can check if a use logged in

 $auth = Zend_Auth::getInstance();
 if (!$auth->hasIdentity()) {
     if ('login' != $this->getRequest()->getActionName()) {
         $this->_helper->getHelper('Redirector')->setGotoRoute(array(), 'MYROUTE');
     }
 }

php zend_auth zend

Convert any "CamelCased" or "ordinary Word" into an "underscored_word"

Example:

 $word = 'MyClassPHP';
 echo  strtolower(preg_replace('/[^A-Z^a-z^0-9]+/','_', preg_replace('/([a-z\d])([A-Z])/','\1_\2', preg_replace('/([A-Z]+)([A-Z][a-z])/','\1_\2',$word))));

Results:

 my_class_php

php5 inflector underscored

Converts a word like "send_email" to "SendEmail". It will remove non aphanumeric character from the word, so "who's online" will be converted to "WhoSOnline"

Example:

 $word = 'send_email';
 echo str_replace(' ','',ucwords(preg_replace('/[^A-Z^a-z^0-9]+/',' ',$word)));

Result:

 SendEmail

php5 camelize inflector