php使用socket调用http和smtp协议实例小结

本文实例讲述了php使用socket调用http和smtp协议。分享给大家供大家参考，具体如下：

socket发送http请求

http协议请求报文格式

get

## 请求方法 请求文件路径?查询字符串 http/协议版本号
## host: 主机名:端口号
## connection:close

post

## 请求方法 请求文件路径 http/协议版本号
## host: 主机名:端口号
## content-type: application/x-www-form-urlencoded
## content-length： 查询字符串长度
## connection: close
## 查询字符串

api.php

<?php
echo $_server["request_method"]."<br/>";
print_r($_request);

fsocketopen发送get请求

<?php
$url = "api.php";
$host = "127.0.0.1";
$port = 8080;
$param = ["name"=>"zhezhao","age"=>23];
$url .= "?".http_build_query($param);
$socket = fsockopen($host,$port,$errno,$errstr,10);
$request = "get /${url} http/1.1\r\n";
$request .= "host:${host}:{$port}\r\n";
$request .= "connection:close\r\n\r\n";
fwrite($socket,$request);
echo "<b>request:</b><br/>".str_replace("\r\n","<br/>",$request);
echo "<hr/><b>response:</b><br/>";
$response = "";
while ($out = fread($socket, 2048)) {
 $response .= $out;
}
echo str_replace("\r\n","<br/>",$response);
fclose($socket);

sockets扩展发送post请求

<?php
$url = "api.php";
$host = "127.0.0.1";
$port = 8080;
$param = ["name"=>"zhezhao","age"=>23];
$data = http_build_query($param);
$socket = socket_create(af_inet, sock_stream, sol_tcp);
socket_connect($socket, $host,$port);
$request = "post /${url} http/1.1\r\n";
$request .= "host:${host}:{$port}\r\n";
$request .= "content-type:application/x-www-form-urlencoded\r\n";
$request .= "content-length:".strlen($data)."\r\n";
$request .= "connection:close\r\n\r\n";
$request .= "${data}";
socket_write($socket,$request);
echo "<b>request:</b><br/>".str_replace("\r\n","<br/>",$request);
echo "<hr/><b>response:</b><br/>";
$response = "";
while ($out = socket_read($socket, 2048)) {
 $response .= $out;
}
echo str_replace("\r\n","<br/>",$response);
socket_close($socket);

socket发送smtp请求

首先通过socket连接到smtp服务器，例如smtp.163.com 25，然后实现smtp发送邮件的必须参数即可。

helo 主机名
auth login base64编码之后的发件人邮箱
base64编码之后的密码
##填写信封
mail from:<发件人邮箱>
rcpt to:<收件人邮箱>
##填写信件内容
data
mime-version:1.0
to: 收件人邮箱
from: 发件人邮箱
subject： 邮件主题

邮件内容

fsocketopen发送邮件

fsocketopen和pfsocketopen是php机制本身的函数，可以直接调用，不需要安装扩展。以上两个函数可以打开一个网络连接或者一个unix套接字连接，然后我们可以使用fwrite,fread,fclose,feof等函数直接操作该网络连接。

<?php
$user = "[e-mail]";
$password = "root";
$mailto = "[e-mail]";
$subject = "fsocketopen发送邮件";
$body = "收到邮件了么，亲";
$sock = fsockopen("smtp.163.com",25);
fputs($sock,"helo localhost\r\n");
echo fgets($sock, 512)."<br/>";
fputs($sock,"auth login ".base64_encode($user)."\r\n");
echo fgets($sock, 512)."<br/>";
fputs($sock,base64_encode($password)."\r\n");
echo fgets($sock, 512)."<br/>";
fputs($sock,"mail from:<${user}>\r\n");
echo fgets($sock, 512)."<br/>";
fputs($sock,"rcpt to:<${mailto}>\r\n");
echo fgets($sock, 512)."<br/>";
fputs($sock,"data\r\n");
echo fgets($sock, 512)."<br/>";
$header = "mime-version:1.0\r\n";
$header .= "to: ${mailto}\r\n";
$header .= "from: ${user}\r\n";
$header .= "subject: ${subject}\r\n";
fputs($sock, $header . "\r\n" . $body);
echo fgets($sock, 512)."<br/>";
fputs($sock, "\r\n.\r\n");
echo fgets($sock, 512)."<br/>";
fputs($sock,"quit\r\n");
fclose($sock);

sockets扩展发送邮件

sockets扩展的功能更加强大，可以搭建tcp/ip服务器，不过我们使用smtp协议发送邮件的例子，只需要使用到socket客户端的功能。

 <?php
$user = "[e-mail]";
$password = "root";
$mailto = "[e-mail]";
$subject = "sockets扩展发送邮件";
$body = "收到邮件了么，亲";
$socket = socket_create(af_inet, sock_stream, sol_tcp);
socket_connect($socket, "smtp.163.com",25);
socket_write($socket,"helo localhost\r\n");
echo socket_read($socket, 512)."<br/>";
socket_write($socket,"auth login ".base64_encode($user)."\r\n");
echo socket_read($socket, 512)."<br/>";
socket_write($socket,base64_encode($password)."\r\n");
echo socket_read($socket, 512)."<br/>";
socket_write($socket,"mail from:<${user}>\r\n");
echo socket_read($socket, 512)."<br/>";
socket_write($socket,"rcpt to:<${mailto}>\r\n");
echo socket_read($socket, 512)."<br/>";
socket_write($socket,"data\r\n");
echo socket_read($socket, 512)."<br/>";
$header = "mime-version:1.0\r\n";
$header .= "to: ${mailto}\r\n";
$header .= "from: ${user}\r\n";
$header .= "subject: ${subject}\r\n";
socket_write($socket, $header . "\r\n" . $body);
echo socket_read($socket, 512)."<br/>";
socket_write($socket, "\r\n.\r\n");
echo socket_read($socket, 512)."<br/>";
socket_write($socket,"quit\r\n");
fclose($sock);

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