php使用socket編程示例

2個php測試文件
server.php

代碼如下:
<?php
//phpinfo();
//確保在連接客戶端時不會超時
set_time_limit(0);

$ip = '127.0.0.1';
$port = 1935;

/*
 +-------------------------------
 *    @socket通信整個過程
 +-------------------------------
 *    @socket_create
 *    @socket_bind
 *    @socket_listen
 *    @socket_accept
 *    @socket_read
 *    @socket_write
 *    @socket_close
 +--------------------------------
 */

/*----------------    以下操作都是手冊上的    -------------------*/
if(($sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP)) < 0) {
    echo "socket_create() 失敗的原因是:".socket_strerror($sock)."\n";
}

if(($ret = socket_bind($sock,$ip,$port)) < 0) {
    echo "socket_bind() 失敗的原因是:".socket_strerror($ret)."\n";
}

if(($ret = socket_listen($sock,4)) < 0) {
    echo "socket_listen() 失敗的原因是:".socket_strerror($ret)."\n";
}

$count = 0;

do {
    if (($msgsock = socket_accept($sock)) < 0) {
        echo "socket_accept() failed: reason: " . socket_strerror($msgsock) . "\n";
        break;
    } else {

        //發到客戶端
        $msg ="測試成功！\n";
        socket_write($msgsock, $msg, strlen($msg));

        echo "測試成功了啊\n";
        $buf = socket_read($msgsock,8192);

       
        $talkback = "收到的信息:$buf\n";
        echo $talkback;

        if(++$count >= 5){
            break;
        };

   
    }
    //echo $buf;
    socket_close($msgsock);

} while (true);

socket_close($sock);
?>

client.php
代碼如下:
<?php
error_reporting(E_ALL);
set_time_limit(0);
echo "<h2>TCP/IP Connection</h2>\n";

$port = 1935;
$ip = "127.0.0.1";

/*
 +-------------------------------
 *    @socket連接整個過程
 +-------------------------------
 *    @socket_create
 *    @socket_connect
 *    @socket_write
 *    @socket_read
 *    @socket_close
 +--------------------------------
 */

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket < 0) {
    echo "socket_create() failed: reason: " . socket_strerror($socket) . "\n";
}else {
    echo "OK.\n";
}

echo "試圖連接 '$ip' 端口 '$port'...\n";
$result = socket_connect($socket, $ip, $port);
if ($result < 0) {
    echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";
}else {
    echo "連接OK\n";
}

$in = "Ho\r\n";
$in .= "first blood\r\n";
$out = '';

if(!socket_write($socket, $in, strlen($in))) {
    echo "socket_write() failed: reason: " . socket_strerror($socket) . "\n";
}else {
    echo "發送到服務器信息成功！\n";
    echo "發送的內容為:<font color='red'>$in</font> <br>";
}

while($out = socket_read($socket, 8192)) {
    echo "接收服務器回傳信息成功！\n";
    echo "接受的內容為:",$out;
}

echo "關閉SOCKET...\n";
socket_close($socket);
echo "關閉OK\n";
?>

偵聽
代碼如下:
# /usr/local/php/bin/php  /usr/local/apache2/htdocs/server.php

請求 代碼如下:
# /usr/local/php/bin/php  /usr/local/apache2/htdocs/client.php

默認PHP是沒有開啟Socket的
  代碼如下:
#cd ./ext/sockets/
# /usr/local/php/bin/phpize
# ./configure --enable-sockets --with-php-config=/usr/local/php/bin/php-config
# make
# make install

php.ini修改配置
增加
代碼如下:
extension=sockets.so

重啟apache
代碼如下:
# /usr/local/apache2/bin/apachectl restart

Windows下的配置
修改php.ini
代碼如下:
extension=php_sockets.dll

重啟apache
cmd下起2個
php的安裝目錄

  代碼如下:
C:/php/php.exe   F:web/server.php
C:/php/php.exe   F:web/client.php

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