PHP SSH query fails to execute on specific query

Question

So, i'm using SSH lib and everything works fine with simple ssh queries like:

mkdir mydir

but when i'm trying to change user password, it doesn't work, i have copied the same query text in putty, there it work fine. I think it's problem with something else. My user pass code line:

$ssh->SendCommand('echo -e "'.$new_pw.'\\n'.$new_pw.'" | passwd '.$sd[0]['port'].'') ;

Answer 1

Using phpseclib, a pure PHP SSH implementation ,

$ssh->enablePTY(); 
$ssh->exec('passwd');
$ssh->write("newpw\n");
$ssh->read('password:'); // full string is "Retype new UNIX password:"
$ssh->write("newpw\n");
$ssh->read('success'); // full string is "passwd: password updated successfully"