PSR-4 autoloading with Composer

问题

I run a portail with composer's autoloading class system:

"autoload": {
    "psr-4": {
        "Portal\\": "src/"
    }
}

It works when I run composer.phar dump -o, for instance my class Boostrap is well referenced into vendor/composer/autoload_classmap.php file:

'Portal\\Core\\Bootstrap' => $baseDir . '/src/core/Bootstrap.php',

But when I don't run the optimized option on autoload dumping, the autoloading system doesn't works anymore:

Fatal error: Class 'Portal\Core\Bootstrap' not found in /var/www/portail/prod/web/index.php on line 7

How can I make autoloading works without -o option?

回答1:

There are two ways to fix it.

1. change composer.json to

   "Portal\\Core\\": "src/core/"
   

2. Or rename the core directory to Core

https://getcomposer.org/doc/04-schema.md#psr-4

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

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

来源：https://stackoverflow.com/questions/28607674/psr-4-autoloading-with-composer