Append a query string to any url requested from my website in Codeigniter

Append a query string to any url requested from my website in Codeigniter. Example. Url will look LikeExample. Url will look Like example.com example.com/product example.com/search?q=string to example.com?testing=true example.com/product?testing=true example.com/search?q=string&testing=true <IfModule mod_rewrite.c>     RewriteEngine On     RewriteCond %{QUERY_STRING} !(^|&)testing=true(&|$) [NC]     RewriteRule ^ %{REQUEST_URI}?testing=true [L,QSA,R]     RewriteCond %{REQUEST_FILENAME} !-f     RewriteCond … Read moreAppend a query string to any url requested from my website in Codeigniter