Edit: Cdnfsd_Util.php
<?php /** * File: Cdnfsd_Util.php * * @package W3TC */ namespace W3TC; /** * Class Cdnfsd_Util */ class Cdnfsd_Util { /** * Engine name retrieval. * * @param string $engine The name of the engine to retrieve. * * @return string The name of the engine. */ public static function engine_name( $engine ) { return $engine; } /** * Get suggested home IP address. * * @return string The resolved IP address or an empty string if it resolves to a local IP. */ public static function get_suggested_home_ip() { $ip = gethostbyname( Util_Environment::home_url_host() ); // check if it resolves to local IP, means host cant know its real IP. if ( '127.' === substr( $ip, 0, 4 ) || '10.' === substr( $ip, 0, 3 ) || '192.168.' === substr( $ip, 0, 8 ) ) { return ''; } return $ip; } }
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