404 when accessing a function in a controller

In View/signup.php

PHP Code:

<form action="<?php echo base_url(); ?>/SignupController/store" method="post"> 


In app/Config/Routes.php:

PHP Code:

$routes->post('/SigupController/(:any)', 'SignupController::$1'); 


Result (called using form->Submit): 404, File not found.
Result (using https://example.com/SignupController/store in Browser): 404, File not found.


In View/signup.php

PHP Code:

<form action="<?php echo base_url(); ?>store" method="post"> 


In app/Config/Routes.php:

PHP Code:

$routes->get('/store', 'SignupController::store'); 


Result (called using form->Submit): 404, File not found.
Result (using https://example.com/store in Browser): Function called correctly, page displayed.

In View/signup.php

PHP Code:

<form action="<?php echo base_url(); ?>/store" method="post"> 


In app/Config/Routes.php:

PHP Code:

$routes->post('/store', 'SignupController::store'); 


Result (called using form->Submit): 404, File not found.
Result (using https://example.com/store in Browser): Function called correctly, page displayed.

~Dave