Slim仍处理错误，即使设置为不

Question

Here is my main Slim app instantiation code:

$slimSettings = [
    'settings' => [
        'displayErrorDetails' => false,
        'routerCacheFile'     => false  # Settings::ABSPATH . '/tmp/route.cache'
    ],
];

# Initialize
$app = new \Slim\App( $slimSettings );

# Create container
$container = $app->getContainer();

# Register component on container
$container[ 'view' ] = function( $container ) {
    $renderer = new \Slim\Views\PhpRenderer();
    $renderer->setAttributes( [ 'absPath' => Settings::ABSPATH ] ); # Variable accessible from all templates

    return $renderer;
};

# Remove error handling from slim, so custom error handling is used.
unset( $app->getContainer()[ 'errorHandler' ] );

You can see that the last line is supposed to unset the errorHandler. Yet, in a controller for example I declare a function with:

public function index( $request, Response $response )

I forgot to set the 'Response' use statement, so it created an error (easily fixed but that's not the point). But this error was handled by slim. Why is that ? Isn't it supposed not to handle errors from the unset statement ?

UPDATE: error:

Details

Slim Application Error
The application could not run because of the following error:

Type: TypeError
Message: Argument 2 passed to Rib\Src\Controllers\HomeController::index() must be an instance of Rib\Src\Controllers\Response, instance of Slim\Http\Response given
File: /Users/ME/Documents/Apps_And_Sites/PHP_Apps/ribklein/src/Controllers/HomeController.php
Line: 19

Answer 1

Argument 2 passed to Rib\Src\Controllers\HomeController::index() must be an instance of Rib\Src\Controllers\Response, instance of Slim\Http\Response given

This is a namespace declaration error.Answer

In your controller file (HomeController) at the top add this:

use \Psr\Http\Message\ResponseInterface as Response;

UPDATE

Sorry, I misread the question. So, you want to know why the error was handled by Slim.

This is because the error is a PHP Runtime error. And Slim has special handler for that. In container it is stored under the phpErrorHandler key. By default it returns a 500 response code, and, of course, you can define your own error handler.

Therefore, to disable Slim's handling of PHP errors, unset $container['phpErrorHandler'].

Important note: This handler is PHP7+ only, since PHP Error class was introduced in PHP7.0.

You can read more about subject here.