Cakephp Rest Get header

I'm trying to get header content from a json post request. But I can't seem to find a method for it in the requesthandler...

print_r($this->request); doesn't show anything useful. I've tried

$this->request['head'];

$this->request['header'];

$this->request->getHeaders;

None of which work

Solution

You can access the headers using:

 $this->request->header('User-Agent');