Parser and if statement

Hello! 

Unfortunately, this is not possible.

As you can see on Template Parsing library:

The Template Parser Class is not a full-blown template parsing solution. We’ve kept it very lean on purpose in order to maintain maximum performance.

Try to iterate your entries in your controller and set the title directly from there:

PHP Code:

foreach($blog_entries as &$entry)
{
    $entry['message'] = '...';
} 


Hope this helps.