Router

If you need to use subfolder in CI3 for default_controller you need to have a Custom MY_Router.php

core/MY_Router.php

Link https://github.com/wolfgang1983/CI3-defa...sub_folder

controllers / pages / Welcome.php

Code:

$route['default_controller'] = 'pages/welcome';

PHP Code:

<?php
 
class MY_Router extends CI_Router {
    protected function _set_default_controller() {
         
        if (empty($this->default_controller)) {
            
            show_error('Unable to determine what should be displayed. A default route has not been specified in the routing file.');
        }
        // Is the method being specified?
        if (sscanf($this->default_controller, '%[^/]/%s', $class, $method) !== 2) {
            $method = 'index';
        }
         
        // This is what I added, checks if the class is a directory
        if( is_dir(APPPATH.'controllers/'.$class) ) {
             
            // Set the class as the directory
            
            $this->set_directory($class);
            
            // $method is the class
            
            $class = $method;
            
            // Re check for slash if method has been set
            
            if (sscanf($method, '%[^/]/%s', $class, $method) !== 2) {
                $method = 'index';
            }
        }
         
        if ( ! file_exists(APPPATH.'controllers/'.$this->directory.ucfirst($class).'.php')) {
            
            // This will trigger 404 later
            
            return;
        }
        $this->set_class($class);
        $this->set_method($method);
        // Assign routed segments, index starting from 1
        $this->uri->rsegments = array(
            1 => $class,
            2 => $method
        );
        log_message('debug', 'No URI present. Default controller set.');
    }
} 


There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!