He pensado tener integrado adminer en codeigniter durante el desarrollo pero pasa algo curioso
localhost/adminer -> Da un "Not Fount" que no pertenece a codeigniter
Código HTML:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL /adminer was not found on this server.</p>
<hr>
<address>Apache/2.4.12 (Ubuntu) Server at localhost Port 80</address>
</body></html>
localhost/adminer_prueba -> Adminer funciona perfectamente
localhost/admin -> Adminer funciona perfectamente