symfony/src/Symfony/Component/Debug/README.md

Debug Component
===============

Debug provides tools to make debugging easier.

Enabling all debug tools is as easy as calling the `enable()` method on the
main `Debug` class:

```php
use Symfony\Component\Debug\Debug;

Debug::enable();
```

You can also use the tools individually:

```php
use Symfony\Component\Debug\ErrorHandler;
use Symfony\Component\Debug\ExceptionHandler;

error_reporting(-1);

ErrorHandler::register($errorReportingLevel);
if ('cli' !== php_sapi_name()) {
    ExceptionHandler::register();
} elseif (!ini_get('log_errors') || ini_get('error_log')) {
    ini_set('display_errors', 1);
}
```

Note that the `Debug::enable()` call also registers the debug class loader
from the Symfony ClassLoader component when available.

This component can optionally take advantage of the features of the HttpKernel
and HttpFoundation components.

Resources
---------

You can run the unit tests with the following command:

    $ cd path/to/Symfony/Component/Debug/
    $ composer.phar install --dev
    $ phpunit