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PHP在线发邮件代码
为解决一些主机空间或服务器上不带发邮件sendmail程序
给大家提供一个亲测可用的在线发邮件小程序，可按自己要求修改
2020.12.7 更新代码，添加发件人名称自定义功能。
注意以下三个文件需要放在同一目录内。
index.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PHP利用smtp类发送邮件范例</title>
</head>
<body>
<form action="sendmail.php" method="post">
<p>收件人：<input type="text" name="toemail" /></p>
<p>标 题：<input type="text" name="title" /></p>
<p>内 容：<textarea name="content" cols="50" rows="5"></textarea></p>
<p><input type="submit" value="发送" /></p>
</form>
</body>
</html>
sendmail.php
该文件中可以修改使用的邮箱，推荐使用腾讯QQ邮箱，如果邮件内容里有手机号和QQ号等内容，网易邮箱会自动当做垃圾邮件拦截导致无法发送到目标邮箱。
<?php
header"Content-type: text/html; charset=utf-8");
require_once "smtp.class.php";
//******************** 配置信息 ********************************
$smtpserver = "smtp.qq.com";//SMTP服务器
$smtpserverport =587;//SMTP服务器端口 465/587
$smtpusermail = "875001151@qq.com";//SMTP服务器的用户邮箱
$smtpemailto = $_POST['toemail'];//发送给谁
$smtpfromname = "风君子博客"; //发件人名称
$smtpuser = "875001151@qq.com";//SMTP服务器的用户帐号，注：部分邮箱只需@前面的用户名
$smtppass = "";//SMTP服务器的授权码（网易和QQ邮箱均使用授权码，不是账号登录密码）
$mailtitle = $_POST['title'];//邮件主题
$mailcontent = "<h1>".$_POST['content']."</h1>";//邮件内容
$mailtype = "HTML";//邮件格式（HTML/TXT）,TXT为文本邮件
//************************ 配置信息 ****************************
$smtp = new Smtp$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.
$smtp->debug = false;//是否显示发送的调试信息
//$state = $smtp->sendmail$smtpemailto, $smtpusermail, $mailtitle, $mailcontent, $mailtype);
//添加发件人名称
$state = $smtp->sendmail$smtpemailto, $smtpusermail, $smtpfromname, $mailtitle, $mailcontent, $mailtype);
echo "<div style='width:300px; margin:36px auto;'>";
if$state==""){
echo "对不起，邮件发送失败！请检查邮箱填写是否有误。";
echo "<a href='index.html'>点此返回</a>";
exit);
}
echo "恭喜！邮件发送成功！！";
echo "<a href='index.html'>点此返回</a>";
echo "</div>";
?>
smtp.class.php
<?php
/**
* email smtp （support php7）
*
* Modified by: fengjunzi.com 2020.12.7
* UPDATE:
* 1、change ereg to preg_match；change ereg_replace to preg_replace.
* 2、change var to public/private.
*
*
*/
class Smtp
{
/* Public Variables */
public $smtp_port;
public $time_out;
public $host_name;
public $log_file;
public $relay_host;
public $debug;
public $auth;
public $user;
public $pass;
/* Private Variables */
private $sock;
/* Constractor */
function __construct$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 = "", $additional_headers = "")
//增加自定义发件人名称
function sendmail$to, $from, $fromname, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
{
$mail_from = $this->get_address$this->strip_comment$from));
$body = preg_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 .= "From: $fromname<".$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 $this->smtp_error"sending <CR><LF>.<CR><LF> [EOM]");
}
if !$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)
{
$domain = preg_replace"/^.+@[^@]+)$/", "\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", "\r\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 !preg_match"/^[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 preg_match$comment, $address)) {
$address = preg_replace$comment, "", $address);
}
return $address;
}
function get_address$address)
{
$address = preg_replace"/[ \t\r\n])+/", "", $address);
$address = preg_replace"/^.*<.+)>.*$/", "\1", $address);
return $address;
}
function smtp_debug$message)
{
if $this->debug) {
echo $message;
}
}
}
本文转自：https://blog.csdn.net/xiaohongIT/article/details/83386947
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