how does this line function: require_once('Zend/Registry.php');?

Question

I have installed Zend Framework 2(Zend Framework + Zend Server) on my win 7. In Zend/Apache2/htdocs/hello1.php, I put below script:

<?php
    require_once('Zend/Registry.php'); 
    $registry = Zend_Registry::getInstance(); 
    $registry['name'] = 'Quentin Zervaas'; 
    echo sprintf('My name is %s', $registry['name']);
?>

Then I run http://localhost/hello1.php, it shows: My name is Quentin Zervaas

My question is: for this line require_once('Zend/Registry.php'); under htdocs folder, it is dummy.php, favicon.ico, index.html,hello1.php, there is no Zend folder, so how does this line function?

Answer 1

In you php.ini check this

include_path 

it would have the default location of your zend directory.