Bug report

parse_url return value will only contain elements, that were present in the url that was given,

eg. parse_url('//example.com/test') will return ['host' => 'example.com', 'path' => '/test']

If there is then a check for one element, eg. host, then phpstan assumes after that that all other possible keys are present also, eg. 'schema'.

Code snippet that reproduces the problem

https://phpstan.org/r/e1b54513-8e8b-4717-a414-78655097d39b

Expected output

No errors