How can I access a variable defined in the parent template in PHP smarty?

I have a main template which includes a lot of others. How can I access a variable defined in the parent template from the included ones 开发者_运维问答in PHP smarty?

You can pass parameter to children template when you include them.

Example :

{include file='children.tpl' somevar=$somevar}

In your children template, somevar will now be accessible.