PSR4 Composer Autoloading namespaces

Question

I\'ve been having a little play around with some Composer autoloading and i\'m getting some issues so the directory structure is

index.php
app/
            


        

Answer 1

PSR-4 is case sensitive. The structure has to be app/Helpers/Router.php or better App with capital A.

All class names MUST be referenced in a case-sensitive fashion.

The subdirectory name MUST match the case of the sub-namespace names.

The terminating class name corresponds to a file name ending in .php. The file name MUST match the case of the terminating class name.

http://www.php-fig.org/psr/psr-4/