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Requests_Response::throw_for_status( boolean $allow_redirects = true )

Throws an exception if the request was not successful

Parameters

$allow_redirects

(boolean) (Optional) Set to false to throw on a 3xx as well

Default value: true

Source

File: wp-includes/Requests/Response.php 

public function throw_for_status($allow_redirects = true) {
		if ($this->is_redirect()) {
			if (!$allow_redirects) {
				throw new Requests_Exception('Redirection not allowed', 'response.no_redirects', $this);
			}
		}
		elseif (!$this->success) {
			$exception = Requests_Exception_HTTP::get_class($this->status_code);
			throw new $exception(null, $this);
		}
	}

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/requests_response/throw_for_status