akismet_check_server_connectivity

Source code

function akismet_check_server_connectivity() {

	global $akismet_api_host, $akismet_api_port, $wpcom_api_key;

	

	$test_host = 'rest.akismet.com';

	

	// Some web hosts may disable one or both functions

	if ( !function_exists('fsockopen') || !function_exists('gethostbynamel') )

		return array();

	

	$ips = gethostbynamel($test_host);

	if ( !$ips || !is_array($ips) || !count($ips) )

		return array();

		

	$servers = array();

	foreach ( $ips as $ip ) {

		$response = akismet_verify_key( akismet_get_key(), $ip );

		// even if the key is invalid, at least we know we have connectivity

		if ( $response == 'valid' || $response == 'invalid' )

			$servers[$ip] = true;

		else

			$servers[$ip] = false;

	}



	return $servers;

}