php - 在远程计算机上执行并存储输出

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

这是我尝试过的

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

据我说$ test应该输出 root但是什么都没有返回，我确定我错过了什么..... php-pecl-ssh2已经安装，没有错误返回

Answer 1

我猜你的命令是不正确的:

$command = 'whoami';

您还应该在最后两行添加以下内容以获得输出:

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);
}