RewriteEngine on
RewriteCond $1 !^(index\.php|images|robots\.txt|public)
RewriteCond %{REQUEST_URI} !\.(css|js|jpg|gif|png|ico)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?/$1 [L,QSA]

<?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar(1) ) : ?>

            

            <?php endif; ?>

if (stristr($HEADER, "windows-1251") || strpos($CONTENT, "windows-1251"))
{
...
}