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php中socket的用法详解,用PHP的socket实现客户端到

日期:2019-10-01编辑作者:网络安全

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if (false == ($socket_result = socket_connect($socket, $address, $service_port)))
{
echo ("SOCKET_CONNECT_ERROR: " . socket_strerror(socket_last_error($socket)));
}

    $talkback="Backinformation : '$buf'.n";

服务器端需要在cli模式是执行,有可能cli模式下php.ini文件载入的不一样

<?
error_reporting(E_ALL);
set_time_limit(0);
$runtimes = 100;

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

phpinfo();查看是否开启了socket扩展,否则在php.ini中开启。

$start_time = time();
$str = "";
do
{
if (false === ($out = socket_read($socket, 8192)))
{
echo ("SOCKET_READ_ERROR: " . socket_strerror(socket_last_error($socket)));
$str = "";
break;
}
if (time() - $start_time > 1)
{
echo ("SOCKET_READ_ERROR: Timeout!!!");
$str = "";
break;
}
$str .= $out;
} while ($out != "");

    }

 
执行结果如下:
server:

socket_close($socket);
return $str;
}
/*
function f_socket($website,$url)
{
$fp = fsockopen($website, 80, $errno, $errstr, 30);
if (!$fp)
{
}
else
{
$out = "GET " . $url . " HTTP/1.1 ";
$out .= "Host: " . $website . " ";
$out .= "Connection: Close ";
fwrite($fp, $out);
$str = "";
$start_time = time();
while (!feof($fp))
{
$str .= fread($fp, 8192);
if (time()-$start_time > 1)
{
$str = "";
echo "timeout!!!";
break;
}
}
return $str;
}
}
*/
?>

  }while(true);

这时候在zhoxh目录下就有个tem.text文件。查看 Configuration File (php.ini) Path => C:WINDOWS 。不是我的php.ini 文件,这说明调用的php.ini文件时错误的。这时候我们要指定php.ini文件命令如下

$in = "GET " . $url . " HTTP/1.1rn";
$in .= "Host: " . $website . "rn";
$in .= "Connection: closernrn";
socket_write($socket, $in, strlen($in));

    echo$out;

echo "Reading response:nn";
while ($out = socket_read($socket, 8192)) {
 echo $out;
}
echo "closeing socket..";
socket_close($socket);
echo "ok .nn";

for ($i=0; $i<$runtimes; $i )
{
$str = f_socket("www.baidu.com","/s?wd=10000" . $i);
echo "<textarea>" . $str . "</textarea><br>";
}

    echo"socket创建失败原因 ". socket_strerror($sock) ."n";

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
 echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "n";
} else {
 echo "OK. n";
}

function f_socket($website,$url)
{
$service_port = getservbyname('www', 'tcp');
$address = gethostbyname($website);

    echo"OK.n";

<?php
//error_reporting(E_ALL);
echo "<h2>tcp/ip connection </h2>n";
$service_port = 10005;
$address = '127.0.0.1';

echo"OK.n";

可以像如下输出:

一、server.php服务端:

二、服务器端代码的写法

}

本文实例详细讲述了php中socket的用法,分享给大家供大家参考。具体用法如下:

<?php

client:

$address='localhost';

注意的是我的php可以直接执行时配置了环境变量。

  

图片 1

再打开一个DOS窗口,用PHP命令打开CLIENT,会得到服务端的回应....

图片 2

    if(!$buf= trim($buf)) {

$address = '127.0.0.1';
$port = 10005;
//创建端口
if( ($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
 echo "socket_create() failed :reason:" . socket_strerror(socket_last_error()) . "n";
}

    if($buf=='shutdown') {

do {
 //得到一个链接
 if (($msgsock = socket_accept($sock)) === false) {
  echo "socket_accepty() failed :reason:".socket_strerror(socket_last_error($sock)) . "n";
  break;
 }
 //welcome  发送到客户端
 $msg = "<font color='red'>server send:welcome</font><br/>";
 socket_write($msgsock, $msg, strlen($msg));
 echo 'read client messagen';
 $buf = socket_read($msgsock, 8192);
 $talkback = "received message:$bufn";
 echo $talkback;
 if (false === socket_write($msgsock, $talkback, strlen($talkback))) {
  echo "socket_write() failed reason:" . socket_strerror(socket_last_error($sock)) ."n";
 } else {
  echo 'send success';
 }
 socket_close($msgsock);
} while(true);
//关闭socket
socket_close($sock);
?>

        continue;

图片 3

//本地IP

echo "Attempting to connect to '$address' on port '$service_port'...";
$result = socket_connect($socket, $address, $service_port);
if($result === false) {
 echo "socket_connect() failed.nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "n";
} else {
 echo "OK n";
}
$in = "HEAD / http/1.1rn";
$in .= "HOST: localhost rn";
$in .= "Connection: closernrn";
$out = "";
echo "sending http head request ...";
socket_write($socket, $in, strlen($in));
echo  "OKn";

if(($ret= socket_bind($sock,$address,$port)) < 0) {

一、开启socket

ob_implicit_flush();

<?php
error_reporting(E_ALL);
set_time_limit(0);
//ob_implicit_flush();

//发送命令

三、客户端

//监听

复制代码 代码如下:

socket_close($sock);

//绑定
if (socket_bind($sock, $address, $port) === false) {
 echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "n";
}

    }

图片 4

    socket_write($msgsock,$talkback,strlen($talkback));

希望本文所述对大家的PHP程序设计有所帮助。

}while(true);

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//监听
if (socket_listen($sock, 5) === false) {
 echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "n";
}

if(($ret= socket_listen($sock, 5)) < 0) {

复制代码 代码如下:

}

//创建SOCKET

    if(false === ($buf= @socket_read($msgsock, 2048, PHP_NORMAL_READ))) {

}else{

  

$in.="Connection: Closernrn";

socket_close($socket);

    if($buf=='quit') {

echo"OK,He He.nn";

}

    echo"SOCKET连接失败原因: ($result) ". socket_strerror($result) ."n";

二、client.php客户端:

    echo"命令接收失败原因: ". socket_strerror($msgsock) ."n";

图片 5

  

  do{

    }

//创建 TCP/IP socket

if($socket< 0) {

具体操作,在DOS下用PHP命令打开SERVER,处于监听状态..

if(($sock= socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) < 0) {

error_reporting(E_ALL);

        echo'what are you doing?';

//设置用111端口进行通信

  //接收命令 

  

}

set_time_limit(0);

  $msg="nPHP Test Server. n"."用quit,shutdown,sun...等命令测试.n";

    break;

    echo"socket创建失败原因: ". socket_strerror($socket) ."n";

echo"Reading Backinformatin:nn";

if($result< 0) {

$address='localhost';

    }

 代码如下

$result= socket_connect($socket,$address,$service_port);

}

  }

//端口111

?>

$socket= socket_create(AF_INET, SOCK_STREAM, SOL_TCP);

}else{

?>

echo"Close socket........";

echo"Send Command..........";

$in="HEAD / HTTP/1.1rn";

//本地

$service_port= 111;

        break2;

    echo"$bufn";

        echo"socket_read() failed: reason: ". socket_strerror($ret) ."n";

<?php

    echo"监听失败原因 ". socket_strerror($ret) ."n";

  @socket_write($msgsock,$msg,strlen($msg));

}

    echo"创建套接字失败原因 ". socket_strerror($ret) ."n";

        break;

    if($buf=='sun') {

    echo"OK,HE HE.n";

do{

socket_write($socket,$in,strlen($in));

$in="sunn";

  if(($msgsock= @socket_accept($sock)) < 0) {

        socket_close($msgsock);

  

        break2;

$port= 111;

这两段代码是简单介绍用PHP实现客户端和服务端的通信

    }

  socket_close($msgsock);

 代码如下

error_reporting(E_ALL);

$out='';

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