The site is on denwer and here is the contents of .htaccess:
RewriteEngine on RewriteCond $1 !^(index\.php) RewriteRule ^(.*)$ /index.php/$1 [L] the task is to remove the need to write in the address index.php / I use CodeIgniter. I can not get rid of this console 
$1first inRewriteCond? Here inReriteRulewhen$1used, it’s understandable. that this is the content of the first group of matches in the regular schedule. After all, you probably wanted to check the query string, not the mythical$1? - teran