Mrthdrb

I am working on a project where I want to display few links on left side of top bar at Home page, as shown below.

To do this i created a new block with name left.top.links very similar to Magento's block top.links and modified header template and added this block before currency block, very similar to as described in the post here.

but even though i have named this block differently i.e. left.top.links when I logout Sign Up links gets added on both the blocks, top.links and left.top.links.

First place which I wanted to check was customer_logged_out handle in customer.xml, which looks completely OK to me and In fact, i could not find Sign Up link being added anywhere in Magento frontend layouts.

So, my question is, Is there any way to find out how Sign Up link is added in block? Also, what all layout handles are evaluated to render a page? Which will help me in checking on all those places.

try this

Zend_Debug::dump($this->getLayout()->getUpdate()->getHandles());

or better use some developer extensions like

Commerce Bug

or

Mgt Developer Toolbar

We use both of them and give you a lot of usefull information.

regards

To list all layout handle, the approach suggested by @Deepak Mallah works fine:

Zend_Debug::dump($this->getLayout()->getUpdate()->getHandles());

Anyway I think it is not exactly clear to you what is Layout Handle is suggest to dig more on its function in layout files. ( not part of the question/answer )

Here what you are looking for

Give a look at Mage_Page_Block_Template_Links and addlink() method.

In default Magento theme the link "Sign up" is labeled "Log In", this link it is added to the block top.links in app/design/frontend/base/default/layout/customer.xml layout file using the method addlink()

<customer_logged_in>
 <reference name="top.links">
 <action method="addLink" translate="label title" module="customer">
 <label>Log Out</label>
 <url helper="customer/getLogoutUrl"/>
 <title>Log Out</title>
 <prepare/>
 <urlParams/>
 <position>100</position>
 </action>
 </reference>
</customer_logged_in>

Note:
customer_logged_in is a special layout handle that:

 <!--
 Load this update on every page when customer is logged in
 -->

For Magento 2 within phtml template files:

<?php var_dump($block->getLayout()->getUpdate()->getHandles()); ?>