(PECL pecl_http >= 0.10.0)
http_match_request_header — Match any header
$header
, string $value
[, bool $match_case = false
] )Match an incoming HTTP header.
header
the header name (case-insensitive)
value
the header value that should be compared
match_case
whether the value should be compared case sensitively
Returns TRUE if header value matches, else FALSE.