Making bullet work with Whoops exception library

[mackenza]

This is more of a question than an "issue" ;)

I was interested in getting BulletPHP working with the Whoops https://github.com/filp/whoops exception library.

The code I tried so far was:

$whoops = new \Whoops\Run;
$whoops->pushHandler(new \Whoops\Handler\PrettyPageHandler);
$whoops->register();

$app = new Bullet\App();
$app->path('/', function($request) {
    return $blah;
});

This appears to work, in that it gives me a stack dump, seemingly Whoops-generated as so:

exception 'Whoops\Exception\ErrorException' with message 'Undefined variable: blah' in /var/sites/mysite/public/index.php:12
Stack trace:
    #0 /var/sites/mysite/public/index.php(12): Whoops\Run->handleError(8, 'Undefined varia...', '/var/sites/mysi...', 12, Array)
    #1 [internal function]: Closure->{closure}(Object(Bullet\Request))
    #2 /var/sites/mysite/vendor/vlucas/bulletphp/src/Bullet/App.php(262): call_user_func(Object(Closure), Object(Bullet\Request))
    #3 /var/sites/mysite/vendor/vlucas/bulletphp/src/Bullet/App.php(193): Bullet\App->_runPath('GET', '')
    #4 /var/sites/mysite/public/index.php(16): Bullet\App->run(Object(Bullet\Request))
    #5 {main}

but it's just that dump... no pretty page, no HTML at all. The dump pasted above is from the view source in the browser so it's only dumping the text itself.

I know this isn't part of BulletPHP but I was wondering if you had any thoughts on why this might not be working? I will probably ask the Whoops folks too.

[vlucas]

Looks like a very helpful library for debugging. I checked into it a bit. What happens when you set the writeToOutput flag to true?

$whoops->writeToOutput(true);

[mackenza]

yeah, it's quite useful. I did some work with Laravel and he has it built in as the default exception handler in debug mode (which is a configuration setting).

I tried

$whoops->writeToOutput(true);

but the results were the same. I have been looking at this off and on for a couple of days and am baffled ;)

[vlucas]

Okay. There is some built-in exception handling in Bullet. You may have to do something in there:

$app->on('Exception', function($request, $response, \Exception $e) {
    // ...
    var_dump($e);
});

[mackenza]

still no luck but thanks for the note about the exception handling.

I see you are using vardump() in your exception code. I have used this very nice replacement for vardump or print_r in the past called Kint https://github.com/raveren/kint/ . I know it adds a dependency to the package but it's probably worth it (imo).

[denis-sokolov]

Either pass the exception directly to Whoops:

$app->on('Exception', function($request, $response, \Exception $e) use ($run) {
    $run->handleException($e);
});

or restor the Whoops handler:

$run->register();
... $app ...
restore_exception_handler();

[denis-sokolov]

You can also register Whoops at the very end.

[mackenza]

ok it's working.

I am using the following code (as suggested above):

<?php
require '../vendor/autoload.php';
$whoops = new \Whoops\Run;
$whoops->pushHandler(new \Whoops\Handler\PrettyPageHandler);
$whoops->register();

// Your App
$app = new Bullet\App();
$app->on('Exception', function($request, $response, \Exception $e) use ($whoops) {
    $whoops->handleException($e);
});

$app->path('/', function($request) {
    return $blah;
});

echo $app->run(new Bullet\Request());

@denis-sokolov - I notice that before the pretty formatting was working, my stack dump had 5 items but now that I have it working, there is just #0 …/­public/­index.php14. Is this expected or am I not quite there in getting this working?

Thanks for your help both of you!

[denis-sokolov]

I don't know, what's your error?

[mackenza]

'Undefined variable: blah' in /var/sites/mysite/public/index.php:12

I was just testing it so I returned an undefined var to throw the exeception... I guess I could have done something more meaningful. The previous stack trace was in my OP

[sam2332]

is it because your not defining blah in your code? i dont see it in the code above....

[mackenza]

@sam2332 yes, I was trying to trigger an error to test the whoops handler. My question was really why the stack trace was different between the pretty handler and the not quite working output I was getting before I defined the handler correctly. It's not a big deal.

@vlucas you can close this issue as I now have whoops working in bulletphp and the solution is in my post above.