Check for features that require external libraries.
See the feature support constants table
for possible values for the feature argument.
featureFeature to probe for; if the parameter is 0 or omitted, the return value contains a bitmask of all supported features that depend on external libraries
Returns int, whether requested feature is supported, or a bitmask with all supported features.
| Poprzedni | Spis treści | Następny |
| http_date | Początek rozdziału | http_match_etag |