它需要在 ssh 會(huì)話中創(chuàng)建文件“index.php”。使用：“phpseclib/phpseclib”：“~2.0”，$ssh = new SSH2("192.168.138.5", 22);$ssh->login("user", "mypass");$ssh->write("cd /home/user/\n");$ssh->read('[prompt]');$ssh->exec("cat > index.php <<EOF<?phpinclude($_SERVER['DOCUMENT_ROOT'] . '/header.php');EOF\n");$ssh->disconnect();unset($ssh);但結(jié)果是：<?phpinclude(['DOCUMENT_ROOT'] . '/header.php');如何在 ssh 會(huì)話中將“$_SERVER”文本寫入文件？