PHP的一个完整SMTP类（解决当mail()遇上邮件服务器需要验证时的问题）
smtp.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 ( "(^|(/r/n))(/.)" , "/1./3" , $body );
$header .= "MIME-Version:1.0/r/n" ;
if( $mailtype == "HTML" ){
$header .= "Content-Type:text/html/r/n" ;
}
$header .= "To: " . $to . "/r/n" ;
if ( $cc != "" ) {
$header .= "Cc: " . $cc . "/r/n" ;
}
$header .= "From: $from<" . $from . ">/r/n" ;
$header .= "Subject: " . $subject . "/r/n" ;
$header .= $additional_headers ;
$header .= "Date: " . date ( "r" ). "/r/n" ;
$header .= "X-Mailer:By Redhat (PHP/" . phpversion (). ")/r/n" ;
list( $msec , $sec ) = explode ( " " , microtime ());
$header .= "Message-ID: <" . date ( "YmdHis" , $sec ). "." .( $msec * 1000000 ). "." . $mail_from . ">/r/n" ;
$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 host/n" );
}
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" );
}
#auth
if( $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
}
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 . "/r/n" . $body );
$this -> smtp_debug ( "> " . str_replace ( "/r/n" , "/n" . "> " , $header . "/n> " . $body . "/n> " ));
return TRUE ;
}
function smtp_eom ()
{
fputs ( $this -> sock , "/r/n./r/n" );
$this -> smtp_debug ( ". [EOM]/n" );
return $this -> smtp_ok ();
}
function smtp_ok ()
{
$response = str_replace ( "/r/n" , "" , fgets ( $this -> sock , 512 ));
$this -> smtp_debug ( $response . "/n" );
if (! ereg ( "^[23]" , $response )) {
fputs ( $this -> sock , "QUIT/r/n" );
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 . "/r/n" );
$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 ( "([ /t/r/n])+" , "" , $address );
$address = ereg_replace ( "^.*<(.+)>.* $ " , "/1" , $address );
return $address ;
}
function smtp_debug ( $message )
{
if ( $this -> debug ) {
echo $message ;
}
}
}
?>
test.php
/*
这是一个测试程序!!!
请按照说明设置好以下的参数,以下是以tom.com的用户为例设置好的.
*/
require( "sm.php" );
##########################################
$smtpserver = "smtp.tom.com" ; //SMTP服务器
$smtpserverport = 25 ; //SMTP服务器端口
$smtpusermail = "[email protected]" ; //SMTP服务器的用户邮箱
$smtpemailto = "[email protected]" ; //发送给谁
$smtpuser = "someone" ; //SMTP服务器的用户帐号
$smtppass = "someonepass" ; //SMTP服务器的用户密码
$mailsubject = "Test Subject" ; //邮件主题
$mailbody = "
This is a test mail
" ; //邮件内容$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 );
?>