PHP发邮件的简单类

sm.php

<?php

class smtp{/* Public Variables */var $smtp_port;var $time_out;var $host_name;var $log_file;var $relay_host;var $debug;var $auth;var $user;var $pass;

/* Private Variables */var $sock;

/* Constractor */function smtp($relay_host = '', $smtp_port = 25,$auth = false,$user,$pass){$this->debug = FALSE;$this->smtp_port = $smtp_port;$this->relay_host = $relay_host;$this->time_out = 30; //is used in fsockopen()#$this->auth = $auth;//auth$this->user = $user;$this->pass = $pass;#$this->host_name = 'localhost'; //is used in HELO command$this->log_file = '';

$this->sock = FALSE;}

/* Main Function */function sendmail($to, $from, $subject = '', $body = '', $mailtype, $cc = '', $bcc = '', $additional_headers = ''){$mail_from = $this->get_address($this->strip_comment($from));$body = ereg_replace('(^|(rn))(.)', '1.3', $body);$header .= 'MIME-Version:1.0rn';if($mailtype=='HTML'){$header .= 'Content-Type:text/htmlrn';}$header .= 'To: '.$to.'rn';if ($cc != '') {$header .= 'Cc: '.$cc.'rn';}$header .= 'From: $from<'.$from.'>;rn';$header .= 'Subject: '.$subject.'rn';$header .= $additional_headers;$header .= 'Date: '.date('r').'rn';$header .= 'X-Mailer:By Redhat (PHP/'.phpversion().')rn';list($msec, $sec) = explode(' ', microtime());$header .= 'Message-ID: <'.date('YmdHis', $sec).'.'.($msec*1000000).'.'.$mail_from.'>;rn';$TO = explode(',', $this->strip_comment($to));

if ($cc != '') {$TO = array_merge($TO, explode(',', $this->strip_comment($cc)));}

if ($bcc != '') {$TO = array_merge($TO, explode(',', $this->strip_comment($bcc)));}

$sent = TRUE;foreach ($TO as $rcpt_to) {$rcpt_to = $this->get_address($rcpt_to);if (!$this->smtp_sockopen($rcpt_to)) {$this->log_write('Error: Cannot send email to '.$rcpt_to.'n');$sent = FALSE;continue;}if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {$this->log_write('E-mail has been sent to <'.$rcpt_to.'>;n');} else {$this->log_write('Error: Cannot send email to <'.$rcpt_to.'>;n');$sent = FALSE;}fclose($this->sock);$this->log_write('Disconnected from remote hostn');}return $sent;}

/* Private Functions */

function smtp_send($helo, $from, $to, $header, $body = ''){if (!$this->smtp_putcmd('HELO', $helo)) {return $this->smtp_error('sending HELO command');}#authif($this->auth){if (!$this->smtp_putcmd('AUTH LOGIN', base64_encode($this->user))) {return $this->smtp_error('sending HELO command');}

if (!$this->smtp_putcmd('', base64_encode($this->pass))) {return $this->smtp_error('sending HELO command');}}#if (!$this->smtp_putcmd('MAIL', 'FROM:<'.$from.'>;')) {return $this->smtp_error('sending MAIL FROM command');}

if (!$this->smtp_putcmd('RCPT', 'TO:<'.$to.'>;')) {return $this->smtp_error('sending RCPT TO command');}

if (!$this->smtp_putcmd('DATA')) {return $this->smtp_error('sending DATA command');}

if (!$this->smtp_message($header, $body)) {return $this->smtp_error('sending message');}

if (!$this->smtp_eom()) {return $this->smtp_error('sending <CR>;<LF>;.<CR>;<LF>[EOM]');}

if (!$this->smtp_putcmd('QUIT')) {return $this->smtp_error('sending QUIT command');}

return TRUE;}

function smtp_sockopen($address){if ($this->relay_host == '') {return $this->smtp_sockopen_mx($address);} else {return $this->smtp_sockopen_relay();}}

function smtp_sockopen_relay(){$this->log_write('Trying to '.$this->relay_host.':'.$this->smtp_port.'n');$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);if (!($this->sock && $this->smtp_ok())) {$this->log_write('Error: Cannot connenct to relay host '.$this->relay_host.'n');$this->log_write('Error: '.$errstr.' ('.$errno.')n');return FALSE;}$this->log_write('Connected to relay host '.$this->relay_host.'n');return TRUE;}

function smtp_sockopen_mx($address){$domain = ereg_replace('^.+@([^@]+)$', '1', $address);if (!@getmxrr($domain, $MXHOSTS)) {$this->log_write('Error: Cannot resolve MX ''.$domain.''n');return FALSE;}foreach ($MXHOSTS as $host) {$this->log_write('Trying to '.$host.':'.$this->smtp_port.'n');$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);if (!($this->sock && $this->smtp_ok())) {$this->log_write('Warning: Cannot connect to mx host '.$host.'n');$this->log_write('Error: '.$errstr.' ('.$errno.')n');continue;}$this->log_write('Connected to mx host '.$host.'n');return TRUE;}$this->log_write('Error: Cannot connect to any mx hosts ('.implode(', ', $MXHOSTS).')n');return FALSE;}

function smtp_message($header, $body){fputs($this->sock, $header.'rn'.$body);$this->smtp_debug('>'.str_replace('rn', 'n'.'>', $header.'n>'.$body.'n>'));

return TRUE;}

function smtp_eom(){fputs($this->sock, 'rn.rn');$this->smtp_debug('. [EOM]n');

return $this->smtp_ok();}

function smtp_ok(){$response = str_replace('rn', '', fgets($this->sock, 512));$this->smtp_debug($response.'n');

if (!ereg('^[23]', $response)) {fputs($this->sock, 'QUITrn');fgets($this->sock, 512);$this->log_write('Error: Remote host returned ''.$response.''n');return FALSE;}return TRUE;}

function smtp_putcmd($cmd, $arg = ''){if ($arg != '') {if($cmd=='') $cmd = $arg;else $cmd = $cmd.' '.$arg;}

fputs($this->sock, $cmd.'rn');$this->smtp_debug('>'.$cmd.'n');

return $this->smtp_ok();}

function smtp_error($string){$this->log_write('Error: Error occurred while '.$string.'.n');return FALSE;}

function log_write($message){$this->smtp_debug($message);

if ($this->log_file == '') {return TRUE;}

$message = date('M d H:i:s ').get_current_user().'['.getmypid().']: '.$message;if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, 'a'))) {$this->smtp_debug('Warning: Cannot open log file ''.$this->log_file.''n');return FALSE;}flock($fp, LOCK_EX);fputs($fp, $message);fclose($fp);

return TRUE;}

function strip_comment($address){$comment = '([^()]*)';while (ereg($comment, $address)) {$address = ereg_replace($comment, '', $address);}

return $address;}

function get_address($address){$address = ereg_replace('([ trn])+', '', $address);$address = ereg_replace('^.*<(.+)>;.*$', '1', $address);

return $address;}

function smtp_debug($message){if ($this->debug) {echo $message;}}}?>

mail.php

<?phprequire('sm.php');##########################################$smtpserver = 'mail.asdf.com';//SMTP服务器$smtpserverport =25;//SMTP服务器端口$smtpusermail = 'asdf@asdf.com';//SMTP服务器的用户邮箱$smtpemailto = 'asdf@qq.com';//发送给谁$smtpuser = 'asdf@asdf.com';//SMTP服务器的用户帐号$smtppass = 'asdf';//SMTP服务器的用户密码$mailsubject = 'Test Subject';//邮件主题$mailbody = '<h1>;This is a test mail</h1>;';//邮件内容$mailtype = 'HTML';//邮件格式（HTML/TXT）,TXT为文本邮件##########################################$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.$smtp->debug = TRUE;//是否显示发送的调试信息$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);