Uncaught Error: Unsupported operand types in <app>/vendor/bugsnag/bugsnag-silex/src/Request/SilexRequest.php:74

[dominics]

In SilexRequest, this library does the following:

$data['params'] = $this->getInput() + $this->request->query->all();

The call to $this->request->query->all() will always return an array - so far so good. But, in the case of a JSON request payload, the return type of getInput() can be anything that json_decode returns (and is under the control of the client):

// in getInput()
if (is_array($parsed = json_decode($this->request->getContent(), true))) {
    return $parsed;
}

While some versions of JSON (e.g. https://tools.ietf.org/html/rfc4627: "A JSON text is a serialized object or array") specify that a JSON document must contain an object or array, PHP's json_decode has never followed this. So, the return value of json_decode() can be a bool, string, float, int, etc.

Using the + operator between a string and array causes a warning. Using the + operator between an int and array causes a fatal error:

Uncaught Error: Unsupported operand types in <app>/vendor/bugsnag/bugsnag-silex/src/Request/SilexRequest.php:74
Stack trace:
#0 <app>/vendor/bugsnag/bugsnag/src/Callbacks/RequestMetaData.php(38): Bugsnag\Silex\Request\SilexRequest->getMetaData()
#1 <app>/vendor/bugsnag/bugsnag/src/Middleware/CallbackBridge.php(40): Bugsnag\Callbacks\RequestMetaData->__invoke(Object(Bugsnag\Report))
#2 [internal function]: Bugsnag\Middleware\CallbackBridge->__invoke(Object(Bugsnag\Report), Object(Closure))
[...]

[dominics]

Closing because I didn't notice the is_array - this bug came from running 2.1.0 I think; not 2.1.1. Apologies.