php发送email

smtp.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("(^|(\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"); 
        } 

        #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 . [EOM]"); 
        } 
        if (!$this->smtp_putcmd("QUIT"))  
        { 
            return$this->smtp_error("sending QUIT command"); 
        } 
        returnTRUE; 
    } 

    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"); 
            returnFALSE; 
        } 
        $this->log_write("Connected to relay host ".$this->relay_host."\n"); 
        returnTRUE;; 
    } 

    function smtp_sockopen_mx($address) 
    { 
        $domain= ereg_replace("^.+@([^@]+)$", "\1", $address); 
        if (!@getmxrr($domain, $MXHOSTS))  
        { 
            $this->log_write("Error: Cannot resolve MX \"".$domain."\"\n"); 
            returnFALSE; 
        } 
        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"); 
            returnTRUE; 
        } 
        $this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n"); 
        returnFALSE; 
    } 

    function smtp_message($header, $body) 
    { 
        fputs($this->sock, $header."\r\n".$body); 
        $this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> ")); 
        returnTRUE; 
    } 

    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"); 
            returnFALSE; 
        } 
        returnTRUE; 
    } 

    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"); 
        returnFALSE; 
    } 

    function log_write($message) 
    { 
        $this->smtp_debug($message); 
        if ($this->log_file =="") 
        { 
            returnTRUE; 
        } 
        $message=date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$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"); 
            returnFALSE;; 
        } 
        flock($fp, LOCK_EX); 
        fputs($fp, $message); 
        fclose($fp); 
        returnTRUE; 
    } 

    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

php
//引入发送邮件类require("smtp.php");
//使用163邮箱服务器$smtpserver="smtp.163.com";
//163邮箱服务器端口$smtpserverport=25;
//你的邮箱账号(与你的163服务器邮箱账号相比 去掉@163.com)$smtpuser="XXX";//SMTP服务器的用户帐号//你的邮箱密码$smtppass="YYY"; //SMTP服务器的用户密码//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.$smtp=new smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass);
//是否显示发送的调试信息$smtp->debug =TRUE;
//发送邮件//你的163服务器邮箱账号 $smtpusermail = $smtpuser."@163.com";$smtpusermail="XXX@163.com";
//收件人邮箱$smtpemailto="ZZZ@qq.com";
//邮件主题$mailsubject="subject";
//邮件内容$mailbody="PHP+MySQL";
//邮件格式（HTML/TXT）,TXT为文本邮件$mailtype="TXT";
$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

以上就介绍了php 发送 email，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。