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"]." ";

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 "Request: ".str_replace("\\r\\n"," ",$request);

echo "<hr/>Response: ";

$response = "";

while ($out = fread($socket, 2048)) {

$response .= $out;

}

echo str_replace("\\r\\n"," ",$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 "Request: ".str_replace("\\r\\n"," ",$request);

echo "<hr/>Response: ";

$response = "";

while ($out = socket_read($socket, 2048)) {

$response .= $out;

}

echo str_replace("\\r\\n"," ",$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 localhost\\r\\n");