php man page for http_match_etag

HTTP_MATCH_ETAG(3)							 1							HTTP_MATCH_ETAG(3)

http_match_etag - Match ETag

SYNOPSIS
       bool http_match_etag (string  $etag, [bool  $for_range = false])

DESCRIPTION
	Matches the given ETag against the clients If-Match resp.  If-None-Match HTTP headers.

PARAMETERS
	      o $etag
		- the ETag to match

	      o $for_range
		- if set to TRUE, the header usually used to validate HTTP ranges will be checked

RETURN VALUES
	Returns TRUE if ETag matches or the header contained the asterisk ("*"), else FALSE.

SEE ALSO
       http_match_last_modified(3), http_match_request_header(3), http_cache_etag(3), http_cache_last_modified(3), ob_etaghandler(3).

PHP Documentation Group 													HTTP_MATCH_ETAG(3)