我完全不知道发生了什么。我正在尝试连接到redis服务器，我可以使用redis cli很好地连接，但是使用predis我得到了第一个错误。如果我使用redis cli，一切都很好。我100%确信密码和IP是正确的。服务器上的防火墙已关闭。

Fatal error: Uncaught Predis\Connection\ConnectionException: Connection timed out [tcp://[server ip]:6379] in /path/to/.../vendor/predis/predis/src/Connection/AbstractConnection.php:155
Stack trace:

# 0 path/to/.../vendor/predis/predis/src/Connection/StreamConnection.php(128): Predis\Connection\AbstractConnection->onConnectionError('Connection time...', 110)

# 1 path/to/.../vendor/predis/predis/src/Connection/StreamConnection.php(178): Predis\Connection\StreamConnection->createStreamSocket(Object(Predis\Connection\Parameters), 'tcp://[server ip]...', 4)

# 2 path/to/.../vendor/predis/predis/src/Connection/StreamConnection.php(100): Predis\Connection\StreamConnection->tcpStreamInitializer(Object(Predis\Connection\Parameters))

# 3 path/to/.../vendor/predis/predis/src/Connection/AbstractConnection.php(81): Predis\Connection\StreamConnection->createResource()

# 4 path/to/.../vendor/predis/predis/src/Connection/AbstractConnection.php on line 155

这是redis cli的响应：

$ redis-cli -h [server ip]
[server ip]:6379> AUTH [redis password]
OK
[server ip]:6379> PING
PONG
[server ip]:6379>

代码如下：

<?php

include '../../vendor/autoload.php';

function sendMessage($tube, $msg) {
    $client = new Predis\Client(array(
        "scheme" => "tcp",
        //"host" => "127.0.0.1",
        "host" => "[server ip]",
        "port" => 6379
    ), array(
        "parameters" => [
            "password" => "[redis password]"
        ]
    ));

    $client->rpush($tube, $msg);
}

sendMessage('test', "test");

?>

任何帮助都将不胜感激！