wp_get_referer() WP 1.0
Retrieve referer from '_wp_http_referer' or HTTP referer.
If it's the same as the current request URL, will return false.
1 time — 0.001678 sec (very slow) | 50000 times — 2.26 sec (fast) | PHP 7.0.32, WP 5.1.1
No Hooks.
Return
String|false. Referer URL on success, false on failure.
Usage
wp_get_referer();
Changelog
| Since 2.0.4 | Introduced. |
Code of wp_get_referer() wp get referer WP 5.8
function wp_get_referer() {
if ( ! function_exists( 'wp_validate_redirect' ) ) {
return false;
}
$ref = wp_get_raw_referer();
if ( $ref && wp_unslash( $_SERVER['REQUEST_URI'] ) !== $ref && home_url() . wp_unslash( $_SERVER['REQUEST_URI'] ) !== $ref ) {
return wp_validate_redirect( $ref, false );
}
return false;
}