PHP configuration not showing equivalent to `when@dev`

[Jérôme Tamarelle]

This mailer configuration example is non equivalent to the Yaml config.

symfony-docs/mailer.rst

Lines 2102 to 2106 in 50f1f4d

         return static function (FrameworkConfig $framework): void { 
             // ... 
             $framework->mailer() 
                 ->dsn('null://null'); 
         }; 

It should be like this:

symfony-docs/configuration.rst

Lines 519 to 534 in 50f1f4d

             return static function (WebpackEncoreConfig $webpackEncore, ContainerConfigurator $container): void { 
                 $webpackEncore 
                     ->outputPath('%kernel.project_dir%/public/build') 
                     ->strictMode(true) 
                     ->cache(false) 
                 ; 
  
                 // cache is enabled only in the "prod" environment 
                 if ('prod' === $container->env()) { 
                     $webpackEncore->cache(true); 
                 } 
  
                 // disable strict mode only in the "test" environment 
                 if ('test' === $container->env()) { 
                     $webpackEncore->strictMode(false); 
                 } 

The new syntax

namespace Symfony\Config;

return new FrameworkConfig([
    'when@dev' =>
        'framework' => [
            'mailer' => [
                'dsn' => 'null://null',
            ],
        ],
    ],
]);