* - compress: bool, whether to allow gzip/deflate content encoding
* (defaults to true)
* - port: int, use another port as specified in the url
- * - referer: string, the referer to sends
+ * - referer: string, the referer to send
* - useragent: string, the user agent to send
* (defaults to PECL::HTTP/version (PHP/version)))
* - headers: array, list of custom headers as associative array
*
* Accpepts an optional in parameter specifying which feature to probe for.
* If the parameter is 0 or omitted, the return value contains a bitmask of
- * all supported featuers that depend on external libraries.
+ * all supported features that depend on external libraries.
*
* Available features to probe for are:
* <ul>