README

Yii Friendly Exception

An exception interface that provides a friendly name and a possible solution. Error handlers may consider the interface to render additional information right at the error screen.

Example of implementation in Yii Error Handler:

Requirements

• PHP 7.4 - 8.5.

Installation

The package could be installed with Composer:

composer require yiisoft/friendly-exception

General usage

Implementing friendly exception

To make exception friendly require this package and implement FriendlyExceptionInterface:

use Yiisoft\FriendlyException\FriendlyExceptionInterface;

class RequestTimeoutException extends \RuntimeException implements FriendlyExceptionInterface
{
    public function getName(): string
    {
        return 'Request timed out.';
    }
    
    public function getSolution(): ?string
    {
        return <<<'SOLUTION'
            Likely it is a result of resource request is not responding in a timely fashion. Try increasing timeout.
            SOLUTION;
    }
}

When returning solution consider the following best practices:

1. Make solution description as short as possible.
2. Do not use HTML tags.
3. Use simple markdown.

Handling friendly exception

To make your exception handler render friendly exceptions:

use Yiisoft\FriendlyException\FriendlyExceptionInterface;

class ThrowableHandler
{
    public function handle(\Throwable $t)
    {
        if ($t instanceof FriendlyExceptionInterface) {
            // additional handling
        }
        // regular handling
    }
}

Do not forget to render markdown.

Documentation

• Internals

If you need help or have a question, the Yii Forum is a good place for that. You may also check out other Yii Community Resources.

License

The Yii Friendly Exception is free software. It is released under the terms of the BSD License. Please see LICENSE for more information.

Maintained by Yii Software.

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