src/Message/Server/Request.php
public function getParsedBody()
    {
        if (! $this->parsedBody) {
            $parser = new BodyParser($this->getHeaderLine('Content-Type'));
            $this->parsedBody = $parser->parse($this->getBody());
        }
        return $this->parsedBody;
    }
public function getParsedBody()
    {
        if (! $this->parsedBody) {
            $parser = new BodyParser($this->getHeaderLine('Content-Type'));
            $this->parsedBody = $parser->parse($this->getBody());
        }
        return $this->parsedBody;
    }
Retrieve any parameters provided in the request body.

@return null|array|object The deserialized body parameters, if any.
These will typically be an array or object.