[](https://packagist.org/packages/yiisoft/friendly-exception)
[](https://packagist.org/packages/yiisoft/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](https://github.com/yiisoft/error-handler):
## Requirements
- PHP 7.4 - 8.5.
## Installation
The package could be installed with [Composer](https://getcomposer.org):
```shell
composer require yiisoft/friendly-exception
```
## General usage
### Implementing friendly exception
To make exception friendly require this package and implement `FriendlyExceptionInterface`:
```php
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](https://commonmark.org/help/).
### Handling friendly exception
To make your exception handler render friendly exceptions:
```php
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](https://github.com/commonmark/commonmark-spec/wiki/List-of-CommonMark-Implementations#php).
## Documentation
- [Internals](docs/internals.md)
If you need help or have a question, the [Yii Forum](https://forum.yiiframework.com/c/yii-3-0/63) is a good place for that.
You may also check out other [Yii Community Resources](https://www.yiiframework.com/community).
## License
The Yii Friendly Exception is free software. It is released under the terms of the BSD License.
Please see [`LICENSE`](./LICENSE.md) for more information.
Maintained by [Yii Software](https://www.yiiframework.com/).
## Support the project
[](https://opencollective.com/yiisoft)
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