socket 请求与接收事例

客户端

<?php
error_reporting(E_ALL);
set_time_limit(0);
echo "<h2>TCP/IP Connection</h2>\n";

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

/*
+-------------------------------
*    @socket连接整个过程
+-------------------------------
*    @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 "试图连接 '$ip' 端口 '$port'...\n";
$result = socket_connect($socket, $ip, $port);
if ($result < 0) {
echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";
}else {
echo "连接OK\n";
}

$in = "看到我们名字了吧\r\n";
$out = '';

if(!socket_write($socket, $in, strlen($in))) {
echo "socket_write() failed: reason: " . socket_strerror($socket) . "\n";
}else {
echo "发送到服务器信息成功！\n";
}

while($out = socket_read($socket, 8192)) {
echo "接收服务器回传信息成功！\n";
echo "接受的内容为:",$out;
}

echo "关闭SOCKET...\n";
socket_close($socket);
echo "关闭OK\n";

?>

服务端

<?php
//确保在连接客户端时不会超时
set_time_limit(0);

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

/*
+-------------------------------
*    @socket通信整个过程
+-------------------------------
*    @socket_create
*    @socket_bind
*    @socket_listen
*    @socket_accept
*    @socket_read
*    @socket_write
*    @socket_close
+--------------------------------
*/

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

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

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

$count = 0;

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

//发到客户端
$msg ="看到了，你叫able！\n";
socket_write($msgsock, $msg, strlen($msg));

$buf = socket_read($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);
?>