Integrating Whoops Error Handler into ThinkPHP6

During the Spring Festival the author became familiar with ThinkPHP6 and built a blog, but the default exception page was unhelpful.

To improve debugging, the Whoops library is introduced, which provides a pretty error page.

1. Install Whoops via Composer

<code>composer require filp/whoops</code>

Note: any syntax errors in the project must be fixed before running the command.

2. Let Whoops handle ThinkPHP6 exceptions

Add the following code to /app/ExceptionHandle.php inside the render() method:

<code>// Add custom exception handling
if (ENV('APP_DEBUG')) {
    // If the exception is HttpResponseException, return it unchanged
    // JUMP plugin's success, error, and result methods all throw HttpResponseException
    if ($e instanceof HttpResponseException) {
        return $e->getResponse();
    }

    // Let Whoops handle the exception
    $whoops = new \Whoops\Run;
    $whoops->pushHandler(new \Whoops\Handler\PrettyPageHandler());
    return Response::create(
        $whoops->handleException($e),
        'html',
        500
    );
}</code>

After adding the code, an intentional undefined function is placed in the blog's index method to trigger an error.

The resulting page shows Whoops' detailed error screen, confirming the integration works.

3. Conclusion

The author revisited PHP7's exception mechanism while implementing Whoops and notes that try/catch should be used for business logic instead of if/else. A future article will discuss deeper insights into PHP7 exceptions.