(PECL event >= 1.2.6-beta)
EventBufferEvent::getDnsErrorString — Returns string describing the last failed DNS lookup attempt
Returns string describing the last failed DNS lookup attempt made by EventBufferEvent::connectHost() , or an empty string, if there is no DNS error detected.
此函數沒(méi)有參數。
Returns a string describing DNS lookup error, or an empty string for no error.