php socket 使用。。
先弄个简单例子
服务端代码server.php:
error_reporting(E_ALL);
set_time_limit(0);
//ob_implicit_flush();
$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";
}
//绑定
if (socket_bind($sock, $address, $port) === false) {
echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "\n";
}
//监听
if (socket_listen($sock, 5) === false) {
echo "socket_bind() failed :reason:" . socket_strerror(socket_last_error($sock)) . "\n";
}
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
$msg = "server send:welcome
";
socket_write($msgsock, $msg, strlen($msg));
echo 'read client message\n';
$buf = socket_read($msgsock, 8192);
$talkback = "received message:$buf\n";
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);
?>
客户端代码 client.php:
//error_reporting(E_ALL);
echo "
tcp/ip connection
\n";
$service_port = 10005;
$address = '127.0.0.1';
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
} else {
echo "OK. \n";
}
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/1.1\r\n";
$in .= "HOST: localhost \r\n";
$in .= "Connection: close\r\n\r\n";
$out = "";
echo "sending http head request ...";
socket_write($socket, $in, strlen($in));
echo "OK\n";
echo "Reading response:\n\n";
while ($out = socket_read($socket, 8192)) {
echo $out;
}
echo "closeing socket..";
socket_close($socket);
echo "ok .\n\n";
?>
/* ===========以下为要点============= **/
1.首先要在php.ini 中开启 php_socket.dll
2.server.php 需要在 cli模式下运行 （win的 cmd 窗口下 《需要配置环境变量才可以 使用 php "D:\Program Files\PHPnow\htdocs\server.php" 》） 当有用户在 在浏览器运行 client.php时 cmd下的 server.php 会输出相应的信息。
环境变量设置 参见 http://www.lg0351.com/news/show-372.html
3.在php .ini 中 extension_dir 改成 "ext" 《win下 php.ini 放在 c:\windows 下。<如果windows下没有 php.ini 需要复制一个过去。>》
4.如果出现 Failed loading ..\..\ZendOptimizer\ZendExtensionManager.dll
php.ini底部加了段加载他的DLL代码，去掉就行了
在PHP.ini中搜索zend,然后都注释掉
[Zend]
#;zend_extension_ts = "\xampp\php\zendOptimizer\lib\ZendExtensionManager.dll"
#;zend_extension_manager.optimizer_ts = "\xampp\php\zendOptimizer\lib\Optimizer"
。。。
