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/1.1rn";
$request .= "Host:${host}:{$port}rn";
$request .= "Connection:closernrn";
fwrite($socket,$request);
echo "<b Request:</b <br/ ".str_replace("rn","<br/ ",$request);
echo "<hr/ <b Response:</b <br/ ";
$response = "";
while ($out = fread($socket, 2048)) {
 $response .= $out;
}
echo str_replace("rn","<br/ ",$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/1.1rn";
$request .= "Host:${host}:{$port}rn";
$request .= "Content-type:application/x-www-form-urlencodedrn";
$request .= "Content-length:".strlen($data)."rn";
$request .= "Connection:closernrn";
$request .= "${data}";
socket_write($socket,$request);
echo "<b Request:</b <br/ ".str_replace("rn","<br/ ",$request);
echo "<hr/ <b Response:</b <br/ ";
$response = "";
while ($out = socket_read($socket, 2048)) {
 $response .= $out;
}
echo str_replace("rn","<br/ ",$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 = "root@163.com";
$password = "root";
$mailto = "1234567@qq.com";
$subject = "fsocketopen发送邮件";
$body = "收到邮件了么，亲";
$sock = fsockopen("smtp.163.com",25);
fputs($sock,"HELO localhostrn");
echo fgets($sock, 512)."<br/ ";
fputs($sock,"AUTH LOGIN ".base64_encode($user)."rn");
echo fgets($sock, 512)."<br/ ";
fputs($sock,base64_encode($password)."rn");
echo fgets($sock, 512)."<br/ ";
fputs($sock,"MAIL FROM:<${user} rn");
echo fgets($sock, 512)."<br/ ";
fputs($sock,"RCPT TO:<${mailto} rn");
echo fgets($sock, 512)."<br/ ";
fputs($sock,"DATArn");
echo fgets($sock, 512)."<br/ ";
$header = "MIME-Version:1.0rn";
$header .= "To: ${mailto}rn";
$header .= "From: ${user}rn";
$header .= "Subject: ${subject}rn";
fputs($sock, $header . "rn" . $body);
echo fgets($sock, 512)."<br/ ";
fputs($sock, "rn.rn");
echo fgets($sock, 512)."<br/ ";
fputs($sock,"QUITrn");
fclose($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 = "root@163.com";
$password = "root";
$mailto = "1234567@qq.com";
$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($socket,"HELO localhostrn");
echo socket_read($socket, 512)."<br/ ";
socket_write($socket,"AUTH LOGIN ".base64_encode($user)."rn");
echo socket_read($socket, 512)."<br/ ";
socket_write($socket,base64_encode($password)."rn");
echo socket_read($socket, 512)."<br/ ";
socket_write($socket,"MAIL FROM:<${user} rn");
echo socket_read($socket, 512)."<br/ ";
socket_write($socket,"RCPT TO:<${mailto} rn");
echo socket_read($socket, 512)."<br/ ";
socket_write($socket,"DATArn");
echo socket_read($socket, 512)."<br/ ";
$header = "MIME-Version:1.0rn";
$header .= "To: ${mailto}rn";
$header .= "From: ${user}rn";
$header .= "Subject: ${subject}rn";
socket_write($socket, $header . "rn" . $body);
echo socket_read($socket, 512)."<br/ ";
socket_write($socket, "rn.rn");
echo socket_read($socket, 512)."<br/ ";
socket_write($socket,"QUITrn");
fclose($sock);

参考文章：

https://www.zalou.cn/article/66594.htm

https://www.zalou.cn/article/114394.htm