Response::is_redirect()
Is the response a redirect?
Return
(boolean) True if redirect (3xx status), false if not.
Source
File: wp-includes/Requests/src/Response.php
public function is_redirect() {
$code = $this->status_code;
return in_array($code, [300, 301, 302, 303, 307], true) || $code > 307 && $code < 400;
}