array keys() Returns the parameter keys.
bool isNotFound() Is the response a not found error?
bool isCleared() Whether this cookie is about to be cleared.
bool isRedirect(string $location = null) Is the response a redirect of some form?
Response sendContent()
Request|null getParentRequest()
setAutoLastModified() Automatically sets the Last-Modified header according the file modification
Response setContent(mixed $content)
Response send()
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