default controller inside subfolder codeigniter 3 not working - php

Question

In codeigniter 3 application i have directory structure like this:
-Myproject
-application
-controllers
-home
Welcome.php //This is my controller inside home directory
How to set Welcome controller as default controller?
I use below code
$route['default_controller'] = 'home/Welcome';
This routing works for previous versions of codeigniter.

Answer 1

By default, you are not allowed to do that. To get around this, you need to hack your system Router.php:
codeigniter/system/core/Router.php
Edit a few lines of code so that it becomes like this:
line 1. if (!sscanf($this->default_controller, '%[^/]/%[^/]/%s', $directory, $class, $method) !== 2)
line 2. if ( ! file_exists(APPPATH.'controllers'. DIRECTORY_SEPARATOR . $directory. DIRECTORY_SEPARATOR .ucfirst($class).'.php'))
line 3. $this->set_directory($directory);
Once you've done, you can call the default controller under directory.
$route['default_controller'] = 'home/Welcome';

Answer 2

You need not to change anything from files inside CODEIGNITER system folder. Codeigniter allows developer to extend their feature. You can create a file named as MY_Router.php.
<?php
class MY_Router extends CI_Router {
protected function _set_default_controller() {
if (empty($this->default_controller)) {
show_error('Unable to determine what should be displayed. A default route has not been specified in the routing file.');
}
if (sscanf($this->default_controller, '%[^/]/%s', $class, $method) !== 2) {
$method = 'index';
}
if( is_dir(APPPATH.'controllers/'.$class) ) {
$this->set_directory($class);
$class = $method;
if (sscanf($method, '%[^/]/%s', $class, $method) !== 2) {
$method = 'index';
}
}
if ( ! file_exists(APPPATH.'controllers/'.$this->directory.ucfirst($class).'.php')) {
return;
}
$this->set_class($class);
$this->set_method($method);
$this->uri->rsegments = array(
1 => $class,
2 => $method
);
log_message('debug', 'No URI present. Default controller set.');
}
}
Note: Do not change the file name.

Answer 3

Try This in routes.php
$route['default_controller'] = 'welcome';
$route['404_override'] = '';
$route['translate_uri_dashes'] = FALSE;