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PHP

Constant Referrer

URI of resource from which the request was obtained. If relative, it should be interpreted relative to the request URI.

The information is provided by the client and hence unreliable.

Namespace: Core\Env\Server\HTTP
Package: Core\Env\Server\HTTP
Remark:

RFC 2068 defines »Referer« as a typo; here the correct name is used and maps to the correct (misspelled) HTTP header automatically.

Link: RFC 2616: HTTP/1.1, Section 14: Header Field Definitions
Since: 3.1
Located at Env.inc.php

Value summary

`string`	`'HTTP_REFERER'`