PHP网页设计smtp邮件发送一例

我先把我自己学习PHP的过程做一下概括：   smtp邮件发送一例

test_smtp.php

require("smtp.php");

$smtp=new smtp_class;

$smtp->host_name="mail.xiaocui.com";
$smtp->localhost="localhost";
$from="webmaster@xiaocui.com";
$to="root@xiaocui.com";
if($smtp->SendMessage(
$from,
array(
$to
),
array(
"From: $from",
"To: $to",
"Subject: Testing Manuel Lemos' SMTP class"
),
"Hello $to,nnIt is just to let you know that your SMTP class is working just fine.nnBye.n"))
echo "Message sent to $to OK.n";
else
echo "Cound not send the message to $to.nError: ".$smtp->error."n"
?>

smtp.php


class smtp_class
{
var $host_name="";
var $host_port=25;
var $localhost="";
var $timeout=0;
var $error="";
var $debug=1;
var $esmtp=1;
var $esmtp_host="";
var $esmtp_extensions=array();
var $maximum_piped_recipients=100;

/* private variables - DO NOT ACCESS */

var $state="Disconnected";
var $connection=0;
var $pending_recipients=0;

/* Private methods - DO NOT CALL */

Function OutputDebug($message)
{
echo $message,"
n";
}

Function GetLine()
{
for($line="";;)
{
if(feof($this->connection))
{
$this->error="reached the end of stream while reading from socket";
return(0);
}
if(($data=fgets($this->connection,100))==false)
{
$this->error="it was not possible to read line from socket";
return(0);
}
$line.=$data;
$length=strlen($line);
if($length>=2
&& substr($line,$length-2,2)=="rn")
{
$line=substr($line,0,$length-2);
if($this->debug)
$this->OutputDebug("< $line");
return($line);
}
}
}

Function PutLine($line)
{
if($this->debug)
$this->OutputDebug("> $line");
if(!fputs($this->connection,"$linern"))
{
$this->error="it was not possible to write line to socket";
return(0);
}
return(1);
}

Function PutData($data)
{
if(strlen($data))
{
if($this->debug)
$this->OutputDebug("> $data");
if(!fputs($this->connection,$data))
{
$this->error="it was not possible to write data to socket";
return(0);
}
}
return(1);
}

Function VerifyResultLines($code,$responses="")
{
if(GetType($responses)!="array")
$responses=array();
Unset($match_code);

while(($line=$this->GetLine($this->connection)))
{
if(IsSet($match_code))
{
if(strcmp(strtok($line," -"),$match_code))
{
$this->error=$line;
return(0);
}
}
else
{
$match_code=strtok($line," -");
if(GetType($code)=="array")
{
for($codes=0;$codes if($codes>=count($code))
{
$this->error=$line;
return(0);
}
}
else
{
if(strcmp($match_code,$code))
{
$this->error=$line;
return(0);
}
}
}
$responses[]=strtok("");
if(!strcmp($match_code,strtok($line," ")))
return(1);
}
return(-1);
}

Function FlushRecipients()
{
if($this->pending_sender)
{
if($this->VerifyResultLines("250")<=0)
return(0);
$this->pending_sender=0;
}
for(;$this->pending_recipients;$this->pending_recipients--)
{
if($this->VerifyResultLines(array("250","251"))<=0)
return(0);
}
return(1);
}

/* Public methods */

Function Connect()
{
$this->error=$error="";
$this->esmtp_host="";
$this->esmtp_extensions=array();
if(!($this->connection=($this->timeout ? fsockopen($this->host_name,$this->host_port,&$errno,&$error,$this->timeout) : fsockopen($this->host_name,$this->host_port))))
{
switch($error)
{
case -3:
$this->error="-3 socket could not be created";
return(0);
case -4:
$this->error="-4 dns lookup on hostname "".$host_name."" failed";
return(0);
case -5:
$this->error="-5 connection refused or timed out";
return(0);
case -6:
$this->error="-6 fdopen() call failed";
return(0);
case -7:
$this->error="-7 setvbuf() call failed";
return(0);
default:
$this->error=$error." could not connect to the host "".$this->host_name.""";
return(0);
}
}
else
{
if(!strcmp($localhost=$this->localhost,"")
&& !strcmp($localhost=getenv("SERVER_NAME"),"")
&& !strcmp($localhost=getenv("HOST"),""))
$localhost="localhost";
$success=0;
if($this->VerifyResultLines("220")>0)
{
if($this->esmtp)
{
$responses=array();
if($this->PutLine("EHLO $localhost")
&& $this->VerifyResultLines("250",&$responses)>0)
{
$this->esmtp_host=strtok($responses[0]," ");
for($response=1;$response {
$extension=strtoupper(strtok($responses[$response]," "));
$this->esmtp_extensions[$extension]=strtok("");
}
$success=1;
}
}
if(!$success
&& $this->PutLine("HELO $localhost")
&& $this->VerifyResultLines("250")>0)
$success=1;
}
if($success)
{
$this->state="Connected";
return(1);
}
else
{
fclose($this->connection);
$this->connection=0;
$this->state="Disconnected";
return(0);
}
}
}

Function MailFrom($sender)
{
if(strcmp($this->state,"Connected"))
{
$this->error="connection is not in the initial state";
return(0);
}
$this->error="";
if(!$this->PutLine("MAIL FROM: <".$sender.">"))
return(0);
if(!IsSet($this->esmtp_extensions["PIPELINING"])
&& $this->VerifyResultLines("250")<=0)
return(0);
$this->state="SenderSet";
if(IsSet($this->esmtp_extensions["PIPELINING"]))
$this->pending_sender=1;
$this->pending_recipients=0;
return(1);
}

Function SetRecipient($recipient)
{
switch($this->state)
{
case "SenderSet":
case "RecipientSet":
break;
default:
$this->error="connection is not in the recipient setting state";
return(0);
}
$this->error="";
if(!$this->PutLine("RCPT TO:<".$recipient.">"))
return(0);
if(IsSet($this->esmtp_extensions["PIPELINING"]))
{
$this->pending_recipients++;
if($this->pending_recipients>=$this->maximum_piped_recipients)
{
if(!$this->FlushRecipients())
return(0);
}
}
else
{
if($this->VerifyResultLines(array("250","251"))<=0)
return(0);
}
$this->state="RecipientSet";
return(1);
}

Function StartData()
{
if(strcmp($this->state,"RecipientSet"))
{
$this->error="connection is not in the start sending data state";
return(0);
}
$this->error="";
if(!$this->PutLine("DATA"))
return(0);
if($this->pending_recipients)
{
if(!$this->FlushRecipients())
return(0);
}
if($this->VerifyResultLines("354")<=0)
return(0);
$this->state="SendingData";
return(1);
}

Function PrepareData($data,&$output)
{
$length=strlen(&$data);
for($output="",$position=0;$position<$length;)
{
$next_position=$length;
for($current=$position;$current<$length;$current++)
{
switch($data[$current])
{
case "n":
$next_position=$current+1;
break 2;
case "r":
$next_position=$current+1;
if($data[$next_position]=="n")
$next_position++;
break 2;
}
}
if($data[$position]==".")
$output.=".";
$output.=substr(&$data,$position,$current-$position)."rn";
$position=$next_position;
}
}

Function SendData($data)
{
if(strcmp($this->state,"SendingData"))
{
$this->error="connection is not in the sending data state";
return(0);
}
$this->error="";
return($this->PutData(&$data));
}

Function EndSendingData()
{
if(strcmp($this->state,"SendingData"))
{
$this->error="connection is not in the sending data state";
return(0);
}
$this->error="";
if(!$this->PutLine("rn.")
|| $this->VerifyResultLines("250")<=0)
return(0);
$this->state="Connected";
return(1);
}

Function ResetConnection()
{
switch($this->state)
{
case "Connected":
return(1);
case "SendingData":
$this->error="can not reset the connection while sending data";
return(0);
case "Disconnected":
$this->error="can not reset the connection before it is established";
return(0);
}
$this->error="";
if(!$this->PutLine("RSET")
|| $this->VerifyResultLines("250")<=0)
return(0);
$this->state="Connected";
return(1);
}

Function Disconnect($quit=1)
{
if(!strcmp($this->state,"Disconnected"))
{
$this->error="it was not previously established a SMTP connection";
return(0);
}
$this->error="";
if(!strcmp($this->state,"Connected")
&& $quit
&& (!$this->PutLine("QUIT")
|| $this->VerifyResultLines("221")<=0))
return(0);
fclose($this->connection);
$this->connection=0;
$this->state="Disconnected";
return(1);
}

Function SendMessage($sender,$recipients,$headers,$body)
{
if(($success=$this->Connect()))
{
if(($success=$this->MailFrom($sender)))
{
for($recipient=0;$recipient {
if(!($success=$this->SetRecipient($recipients[$recipient])))
break;
}
if($success
&& ($success=$this->StartData()))
{
for($header_data="",$header=0;$header $header_data.=$headers[$header]."rn";
if(($success=$this->SendData($header_data."rn")))
{
$this->PrepareData($body,&$body_data);
$success=$this->SendData($body_data);
}
if($success)
$success=$this->EndSendingData();
}
}
$disconnect_success=$this->Disconnect($success);
if($success)
$success=$disconnect_success;
}
return($success);
}

};

?>  
只要实现最基本的功能就可以了 就是可以添加留言 然后可以显示留言，然后加入管理功能

要进行开发，搭建环境是首先需要做的事，windows下面我习惯把环境那个安装在C盘下面，因为我配的环境经常出现诡异事件，什么事都没做环境有的时候就不能用啦。

在我安装pear包的时候老是提示，缺少某某文件，才发现 那群extension 的排列是应该有一点的顺序，而我安装的版本的排序不是正常的排序。没办法我只好把那群冒号加了上去，只留下我需要使用的扩展。

小鸟是第一次发帖（我习惯潜水的(*^__^*) 嘻嘻……），有错误之处还请大家批评指正，另外，前些日子听人说有高手能用php写驱动程序，真是学无止境，人外有人，天外有天。

Apache不是非得用80或者8080端口的，我刚开始安得时候就是80端口老占用，就用了个 81端口，结果照常，就是输localhost的时候，应该输入为 localhost:81

为了以后维护的方便最好是代码上都加上注释，“予人方便，自己方便”。此外开发文档什么的最好都弄齐全。我觉得这是程序员必备的素质。虽然会消耗点很多的时间。但是确实是非常有必要的。

首推的搜索引擎当然是Google大神，其次我比较喜欢 百度知道。不过搜出来的结果往往都是 大家copy来copy去的，运气的的概率很大。

装在C盘下面可以利用windows的ghost功能可以还原回来（顺便当做是重转啦），当然啦我的编译目录要放在别的盘下，不然自己的劳动成果就悲剧啦。

建议加几个专业的phper的群，当然啦需要说话的人多，一处一点问题能有人回答你的，当然啦要让人回答你的问题，平时就得躲在里面聊天，大家混熟啦，愿意回答你问题的人自然就多啦。

当然这种网站的会员费就几十块钱。

这些都是最基本最常用功能，我们这些菜鸟在系统学习后，可以先对这些功能深入研究。

你很难利用原理去编写自己的代码。对于php来说，系统的学习我认为还是很重要的，当你有一定理解后，你可你针对某种效果研究，我想那时你不会只是复制代码的水平了。

因为blog这样的可以让你接触更多要学的知识，可以接触用到类，模板，js ，ajax

为了以后维护的方便最好是代码上都加上注释，“予人方便，自己方便”。此外开发文档什么的最好都弄齐全。我觉得这是程序员必备的素质。虽然会消耗点很多的时间。但是确实是非常有必要的。

学习php的目的往往是为了开发动态网站，phper就业的要求也涵盖了很多。我大致总结为：精通php和mysql

首先我是坚决反对新手上来就用框架的，因为对底层的东西一点都不了解，造成知识上的真空，会对以后的发展不利。我的观点上手了解下框架就好，代码还是手写。当然啦如果是位别的编程语言的高手的话，这个就另当别论啦。

小鸟是第一次发帖（我习惯潜水的(*^__^*) 嘻嘻……），有错误之处还请大家批评指正，另外，前些日子听人说有高手能用php写驱动程序，真是学无止境，人外有人，天外有天。

仓酷云

当然这种网站的会员费就几十块钱。

写的比较杂，因为我也是个新手，不当至于大家多多指正。