WordPress Developer Resources
Whether the content be decoded based on the headers.
Whether decompression and compression are supported by the PHP version.
Core class used to implement deflate and gzip transfer encoding support for HTTP requests.
Compress raw string using the deflate format.
Decompression of deflated string.
Decompression of deflated string while staying compatible with the majority of servers.
What encoding types to accept and their priority values.
Filters the allowed encoding types.
What encoding the content used when it was compressed to send in the headers.