Code2

<?php // = UTF-8 BOMheader('Content-Type: text/plain; charset=utf-8', TRUE);/**/$arrayOptions = array('socket' => array('bindto' => '0:0'));$options = stream_context_create($arrayOptions);$socket = stream_socket_client('tcp://smtp.mail.yahoo.com.br:25', $errno, $errstr, 1, STREAM_CLIENT_CONNECT, $options);stream_set_blocking($socket, 1);stream_set_timeout($socket, 0, 400000);$eof = (boolean) FALSE;while($eof !== TRUE) {    $response = fread($socket, 8);    echo($response);    flush();    if($response === '') { $eof = (boolean) TRUE; }}var_dump(feof($socket));fwrite($socket, 'EHLO' . "\r\n");$eof = (boolean) FALSE;while($eof !== TRUE) {    $response = fread($socket, 8);    echo($response);    flush();    if($response === '') { $eof = (boolean) TRUE; }}var_dump(feof($socket));fclose($socket);?>