ob_deflatehandler
ob_inflatehandler
HTTP Functions
PHP Manual

# ob_etaghandler

ETag output handler

### Description

string ob_etaghandler ( string `$data` , int `$mode` )

For use with ob_start.

Output buffer handler generating an ETag with the hash algorithm specified with the INI setting http.etag.mode.

This output handler is used by http_cache_etag.

### See Also

- http_cache_etag
- http_match_etag