Core class used to implement deflate and gzip transfer encoding support for HTTP requests.

What encoding types to accept and their priority values.

Decompression of deflated string while staying compatible with the majority of servers.

Compress raw string using the deflate format.

What encoding the content used when it was compressed to send in the headers.

Decompression of deflated string.

Whether decompression and compression are supported by the PHP version.

Whether the content be decoded based on the headers.

Filters the allowed encoding types.