src/net/mail/SMTPMailer.php
private function parseResponse($response) {
        $response = trim($response);
        $this->responseStatus = (int) substr($response, 0, 3);
        $this->response = substr($response, 4);
    }
private function parseResponse($response) {
        $response = trim($response);
        $this->responseStatus = (int) substr($response, 0, 3);
        $this->response = substr($response, 4);
    }
private function parseResponse ( $ response ) { $ response = trim ( $ response ) ; $ this -> responseStatus = ( int ) substr ( $ response , 0 , 3 ) ; $ this -> response = substr ( $ response , 4 ) ; }
Parse the MTA's response.

@param string $response
Parse the MTA s response .