PHP开发中使用smtp类轻松的发送电子邮件（源码）
在现如今，作为PHP网站开发程序员需要接触到各种程序接口，比如网站修改密码使用smtp类轻松的发送电子邮件，首先smtp类发送邮件的方法其实很简单，也很稳定，类是别人已经写好的了，你只需要调用就行了。几行简单的配置就能发邮件，下面我们一起来看一下吧。
email.class.php文件
classsmtp
{
/*PublicVariables*/
var$smtp_port;
var$time_out;
var$host_name;
var$log_file;
var$relay_host;
var$debug;
var$auth;
var$user;
var$pass;
/*PrivateVariables*/
var$sock;
/*Constractor*/
functionsmtp($relay_host="",$smtp_port=25,$auth=false,$user,$pass)
{
$this->debug=FALSE;
$this->smtp_port=$smtp_port;
$this->relay_host=$relay_host;
$this->time_out=30;//isusedinfsockopen()
#
$this->auth=$auth;//auth
$this->user=$user;
$this->pass=$pass;
#
$this->host_name="localhost";//isusedinHELOcommand
$this->log_file="";
$this->sock=FALSE;
}
/*MainFunction*/
functionsendmail($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";
$header.="X-Mailer:ByRedhat(PHP/".phpversion().")rn";
list($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)));
}
$sent=TRUE;
foreach($TOas$rcpt_to){
$rcpt_to=$this->get_address($rcpt_to);
if(!$this->smtp_sockopen($rcpt_to)){
$this->log_write("Error:Cannotsendemailto".$rcpt_to."n");
$sent=FALSE;
continue;
}
if($this->smtp_send($this->host_name,$mail_from,$rcpt_to,$header,$body)){
$this->log_write("E-mailhasbeensentto<".$rcpt_to.">n");
}else{
$this->log_write("Error:Cannotsendemailto<".$rcpt_to.">n");
$sent=FALSE;
}
fclose($this->sock);
$this->log_write("Disconnectedfromremotehostn");
}
return$sent;
}
/*PrivateFunctions*/
functionsmtp_send($helo,$from,$to,$header,$body="")
{
if(!$this->smtp_putcmd("HELO",$helo)){
return$this->smtp_error("sendingHELOcommand");
}
#auth
if($this->auth){
if(!$this->smtp_putcmd("AUTHLOGIN",base64_encode($this->user))){
return$this->smtp_error("sendingHELOcommand");
}
if(!$this->smtp_putcmd("",base64_encode($this->pass))){
return$this->smtp_error("sendingHELOcommand");
}
}
#
if(!$this->smtp_putcmd("MAIL","FROM:<".$from.">")){
return$this->smtp_error("sendingMAILFROMcommand");
}
if(!$this->smtp_putcmd("RCPT","TO:<".$to.">")){
return$this->smtp_error("sendingRCPTTOcommand");
}
if(!$this->smtp_putcmd("DATA")){
return$this->smtp_error("sendingDATAcommand");
}
if(!$this->smtp_message($header,$body)){
return$this->smtp_error("sendingmessage");
}
if(!$this->smtp_eom()){
return$this->smtp_error("sending.[EOM]");
}
if(!$this->smtp_putcmd("QUIT")){
return$this->smtp_error("sendingQUITcommand");
}
returnTRUE;
}
functionsmtp_sockopen($address)
{
if($this->relay_host==""){
return$this->smtp_sockopen_mx($address);
}else{
return$this->smtp_sockopen_relay();
}
}
functionsmtp_sockopen_relay()
{
$this->log_write("Tryingto".$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())){
$this->log_write("Error:Cannotconnencttorelayhost".$this->relay_host."n");
$this->log_write("Error:".$errstr."(".$errno.")n");
returnFALSE;
}
$this->log_write("Connectedtorelayhost".$this->relay_host."n");
returnTRUE;;
}
functionsmtp_sockopen_mx($address)
{
$domain=ereg_replace("^.+@([^@]+)$","1",$address);
if(!@getmxrr($domain,$MXHOSTS)){
$this->log_write("Error:CannotresolveMX"".$domain.""n");
returnFALSE;
}
foreach($MXHOSTSas$host){
$this->log_write("Tryingto".$host.":".$this->smtp_port."n");
$this->sock=@fsockopen($host,$this->smtp_port,$errno,$errstr,$this->time_out);
if(!($this->sock&&$this->smtp_ok())){
$this->log_write("Warning:Cannotconnecttomxhost".$host."n");
$this->log_write("Error:".$errstr."(".$errno.")n");
continue;
}
$this->log_write("Connectedtomxhost".$host."n");
returnTRUE;
}
$this->log_write("Error:Cannotconnecttoanymxhosts(".implode(",",$MXHOSTS).")n");
returnFALSE;
}
functionsmtp_message($header,$body)
{
fputs($this->sock,$header."rn".$body);
$this->smtp_debug(">".str_replace("rn","n".">",$header."n>".$body."n>"));
returnTRUE;
}
functionsmtp_eom()
{
fputs($this->sock,"rn.rn");
$this->smtp_debug(".[EOM]n");
return$this->smtp_ok();
}
functionsmtp_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);
$this->log_write("Error:Remotehostreturned"".$response.""n");
returnFALSE;
}
returnTRUE;
}
functionsmtp_putcmd($cmd,$arg="")
{
if($arg!=""){
if($cmd=="")$cmd=$arg;
else$cmd=$cmd."".$arg;
}
fputs($this->sock,$cmd."rn");
$this->smtp_debug(">".$cmd."n");
return$this->smtp_ok();
}
functionsmtp_error($string)
{
$this->log_write("Error:Erroroccurredwhile".$string.".n");
returnFALSE;
}
functionlog_write($message)
{
$this->smtp_debug($message);
if($this->log_file==""){
returnTRUE;
}
$message=date("MdH:i:s").get_current_user()."[".getmypid()."]:".$message;
if(!@file_exists($this->log_file)||!($fp=@fopen($this->log_file,"a"))){
$this->smtp_debug("Warning:Cannotopenlogfile"".$this->log_file.""n");
returnFALSE;;
}
flock($fp,LOCK_EX);
fputs($fp,$message);
fclose($fp);
returnTRUE;
}
functionstrip_comment($address)
{
$comment="([^()]*)";
while(ereg($comment,$address)){
$address=ereg_replace($comment,"",$address);
}
return$address;
}
functionget_address($address)
{
$address=ereg_replace("([trn])+","",$address);
$address=ereg_replace("^.*<(.+)>.*$","1",$address);
return$address;
}
functionsmtp_debug($message)
{
if($this->debug){
echo$message;
}
}
}
?>
发送邮箱的php文件
require_once"email.class.php";
//********************配置信息********************************
$smtpserver="smtp.XX.com";//SMTP服务器
$smtpserverport=25;//SMTP服务器端口
$smtpusermail="new2018oh@XX.com";//SMTP服务器的用户邮箱
$smtpemailto=$_POST['toemail'];//发送给谁
$smtpuser="new2018oh";//SMTP服务器的用户帐号
$smtppass="您的邮箱密码";//SMTP服务器的用户密码
$mailtitle=$_POST['title'];//邮件主题
$mailcontent="
".$_POST['content']."
";//邮件内容
$mailtype="HTML";//邮件格式(HTML/TXT),TXT为文本邮件
//************************配置信息****************************
$smtp=newsmtp($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,$mailtype);
echo"
";
if($state==""){
echo"对不起，邮件发送失败!请检查邮箱填写是否有误。";
echo"点此返回";
exit();
}
echo"恭喜!邮件发送成功!!";
echo"点此返回";
echo"";
?>
最后还有smtp类无法发送邮件解决方法：
偶然发现网站后台自动发送邮件功能不能用了，报这个错误：
Tryingtosmtp.XX.com:25Error:Cannotconnencttorelayhostsmtp.XX.comError:()Error:Cannotsendemailtoweb@daixiaorui.comstate
大概意思是：无法connenct中继主机smtp.XX.com错误：()错误：无法发送电子邮件
找了很多资料后终于找到了解决方案，不是smtp类的问题，而就是linux配置的问题。原来是服务器的php.ini禁用了fsockopen函数。
打开空间下的php.ini文件，linux空间一般都可以自定义php.ini，所以根目录下面一般会有这个文件。
有两个地方可能禁用此函数：
1.allow_url_fopen=On查看等于后面是否为ON，如果为OFF时函数将被禁用
2.disable_functions=fsockopenpfsockopen(我的就是这样)这里应该去掉前面的“fsockopen”。使之变成：disable_functions=pfsockopen
以上就是关于扣丁学堂php利用smtp类轻松的发送电子邮件的详细介绍最后想要了解更多关于PHP开发发展前景趋势，请关注扣丁学堂官网、微信等平台，扣丁学堂PHP培训IT职业在线学习教育平台为您提供权威的PHP视频教程系统，通过千锋扣丁学堂金牌讲师在线录制的一套PHP视频教程课程，让你快速掌握PHP从入门到精通开发实战技能。扣丁学堂PHP技术交流群：374332265。
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