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Showing content from https://www.yiiframework.com/doc/api/2.0/yii-console-unknowncommandexception below:

UnknownCommandException, yii\console\UnknownCommandException | API Documentation for Yii 2.0

UnknownCommandException represents an exception caused by incorrect usage of a console command.

Hide inherited methods

__construct()

Construct the exception.

The route of the command that could not be found.

The console application instance involved.

The Exception code.

The previous exception used for the exception chaining.

Source code

                public function __construct($route, $application, $code = 0, $previous = null)
{
    $this->command = $route;
    $this->application = $application;
    parent::__construct("Unknown command \"$route\".", $code, $previous);
}

            

Source code

                public function getName()
{
    return 'Unknown command';
}

            

getSuggestedAlternatives()

Suggest alternative commands for $command based on string similarity.

Alternatives are searched using the following steps:

• suggest alternatives that begin with $command
• find typos by calculating the Levenshtein distance between the unknown command and all available commands. The Levenshtein distance is defined as the minimal number of characters you have to replace, insert or delete to transform str1 into str2.

See also https://www.php.net/manual/en/function.levenshtein.php.

Source code

                public function getSuggestedAlternatives()
{
    $help = $this->application->createController('help');
    if ($help === false || $this->command === '') {
        return [];
    }
    /** @var $helpController HelpController */
    list($helpController, $actionID) = $help;
    $availableActions = [];
    foreach ($helpController->getCommands() as $command) {
        $result = $this->application->createController($command);
        /** @var $controller Controller */
        list($controller, $actionID) = $result;
        if ($controller->createAction($controller->defaultAction) !== null) {
            // add the command itself (default action)
            $availableActions[] = $command;
        }
        // add all actions of this controller
        $actions = $helpController->getActions($controller);
        $prefix = $controller->getUniqueId();
        foreach ($actions as $action) {
            $availableActions[] = $prefix . '/' . $action;
        }
    }
    return $this->filterBySimilarity($availableActions, $this->command);
}

            

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