Definition:
function wp_get_referer() {}
Retrieve referer from ‘_wp_http_referer’ or HTTP referer. If it’s the same as the current request URL, will return false.
Return values
returns:False on failure. Referer URL on success.
Source code
function wp_get_referer() { $ref = false; if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) $ref = $_REQUEST['_wp_http_referer']; else if ( ! empty( $_SERVER['HTTP_REFERER'] ) ) $ref = $_SERVER['HTTP_REFERER']; if ( $ref && $ref !== $_SERVER['REQUEST_URI'] ) return $ref; return false; }
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