Code to check if a customer is logged in Magento?

Question

How can we check if customer is actually logged in on magento? Have googled a bit without luck :(

There should be someway found already for this.

Would be great if anyone can help me on this please?

Thanks in advance...

Answer 1

<?php 
$logged_in = Mage::getSingleton('customer/session')->isLoggedIn(); // (boolean) 
?>