我试图通过ssh在PHP脚本中执行远程命令,我希望将命令(stdout和stderr)的输出流式传输到原始主机.
我知道在Perl和Ruby中这是可能的.我在PHP中找不到任何这样的例子.
码：
$ip = 'kssotest.yakabod.net';
$user = 'tester';
$pass = 'kmoon77';
$connection = ssh2_connect($ip);
ssh2_auth_password($connection,$user,$pass);
$shell = ssh2_shell($connection,"bash");
$cmd = "echo '[start]';your commands here;echo '[end]'";
$output = user_exec($shell,$cmd);
fclose($shell);
function user_exec($shell,$cmd) {
fwrite($shell,$cmd . "\n");
$output = "";
$start = false;
$start_time = time();
$max_time = 2; //time in seconds
while(((time()-$start_time) < $max_time)) {
$line = fgets($shell);
if(!strstr($line,$cmd)) {
if(preg_match('/\[start\]/',$line)) {
$start = true;
}elseif(preg_match('/\[end\]/',$line)) {
return $output;
}elseif($start){
$output[] = $line;
}
}
}
}
但是当我像这个$PHP remote.PHP一样执行它时,我收到一个错误：
PHP Fatal error: Call to undefined function ssh2_connect() in /home/tester/PHP_SSH2/remote.PHP on line 6
如果由于繁文缛节而无法添加PHP包,这里有一个简单的类可以解决问题
class ExecuteRemote
{
private static $host;
private static $username;
private static $password;
private static $error;
private static $output;
public static function setup($host,$username=NULL,$password=NULL)
{
self::$host = $host;
self::$username = $username;
self::$password = $password;
}
public static function executeScriptSSH($script)
{
// Setup connection string
$connectionString = self::$host;
$connectionString = (empty(self::$username) ? $connectionString : self::$username.'@'.$connectionString);
// Execute script
$cmd = "ssh $connectionString $script 2>&1";
self::$output['command'] = $cmd;
exec($cmd,self::$output,self::$error);
if (self::$error) {
throw new Exception ("\nError sshing: ".print_r(self::$output,true));
}
return self::$output;
}
}
