How to concatenate variables in if-else in Smarty?

Question

PHP

There was a problem.
In a Smarty template, you need to find out if the current page matches the blog page - and in case of a match, do not display a specific block.
Nowhere can I find information on variable concatenation in if-else.

{if {$smarty.server.HTTP_HOST}{$smarty.server.REQUEST_URI} != $oTopic->getUrl() }

This is the code that throws an error. (It seems to me correct, but how then to concatenate strings - I absolutely do not understand).

Answer 1

Something like this:

{assign var='tmpVar' value=$smarty.server.HTTP_HOST|cat:$smarty.server.REQUEST_URI}
{if $tmpVar != $oTopic->getUrl()}