我找到了解决方案.当我使用时，它似乎有效:

I found a solution. It seems to work, when I use:

$stdin = fopen('php://stdin', 'r');
$read = array($sock, $stdin);
$write = NULL;
$exept = NULL;

而不仅仅是标准输入.尽管 php.net 说，STDIN 已经打开并使用$stdin = fopen('php://stdin', 'r');好像不是，如果你想把它传给stream_select.此外，应该使用 $sock = fsockopen($host); 创建到服务器的套接字.而不是在客户端使用 socket_create ......必须喜欢这种语言，它的合理性和清晰的手册......

Instead of just STDIN. Despite php.net says, STDIN is already open and saves using $stdin = fopen('php://stdin', 'r'); It seems not, if you want to pass it into stream_select. Also, the socket to the server should be created with $sock = fsockopen($host); instead of using socket_create on the client side... gotta love this language and it's reasonability and clear manual...

这是一个使用 select 连接到回显服务器的客户端的工作示例.

Here a working example of a client that connects to an echo server using select.

<?php
$ip     = '127.0.0.1';
$port   = 1234;

$sock = fsockopen($ip, $port, $errno) or die(
    "(EE) Couldn't connect to $ip:$port ".socket_strerror($errno)."\n");

if($sock)
    $connected = TRUE;

$stdin = fopen('php://stdin', 'r'); //open STDIN for reading

while($connected){ //continuous loop monitoring the input streams
    $read = array($sock, $stdin);
    $write = NULL;
    $exept = NULL;

    if (stream_select($read, $write, $exept, 0) > 0){
    //something happened on our monitors. let's see what it is
        foreach ($read as $input => $fd){
            if ($fd == $stdin){ //was it on STDIN?
                $line = fgets($stdin); //then read the line and send it to socket
                fwrite($sock, $line);
            } else { //else was the socket itself, we got something from server
                $line = fgets($sock); //lets read it
                echo $line;
            }
        }
    }
}