exec在远程机器上并存储输出

Question

我想在远程计算机上执行命令，并使用php

将该命令存储在变量中

这是我试过的

$command = 'exec("whoami")';
$connection = ssh2_connect($ip,$port); 
ssh2_auth_password($connection,$user,$pass); 
$test = ssh2_shell($connection,$command); 
echo $test; 

根据我的$ test应输出root 然而，没有任何回报，我相信我错过了一些..... 已安装php-pecl-ssh2且未返回任何错误

Answer 1

我猜你的命令不正确：

$command = 'whoami';

你还应该将这两行添加到最后以获得输出：

if ( $connection = ssh2_connect($ip,$port) ) {
    echo 'Error occured while connecting to server via ssh';
}
if (!ssh2_auth_password($connection,$user,$pass)) {
    echo 'Error occured while authenticating via ssh';
}
if(!$test = ssh2_shell($connection,$command)){
    echo 'Error occured while executing remote command via ssh';
} else {
    stream_set_blocking($test, true);
    echo stream_get_contents($test);
}