<?php
dl('ssh2.so');
$username = 'someone';
$password = 'somewhere';

class ssh_client
{
    private $conn;
    private $shell;

    function connect($in_host, $in_port = 22)
    {
        $this->conn = ssh2_connect($in_host, $in_port);
        if (!$this->conn) {
            return false;
        }

        return true;
    }

    function authenticate($in_username, $in_password, $in_useShell=true)
    {
        if (!ssh2_auth_password($this->conn, $in_username, $in_password)) {
            return false;
        }

        if (!$this->shell) {
            $this->shell = ssh2_shell($this->conn, 'vt102', null, 80, 4096, SSH2_TERM_UNIT_CHARS);
        }

        // get the host name of this cisco machine
        #stream_set_blocking($this->shell, true);
        #fwrite($this->shell, $in_command."\n");
        #$this->prompt = stream_get_line($this->shell, 1024);
        #stream_set_blocking($this->shell, false);
        return true;
    }

    function runCommand($in_command, $in_returnData = true, $in_timeout = 10)
    {
        stream_set_blocking($this->shell,true);
        // send a command
        fwrite($this->shell, $in_command."\n");

        if (!$in_returnData) {
            stream_set_blocking($this->shell, false);
            return null;
        }
        $time_start = time();
        $data       = '';
        while (true){
            $data .= fread($this->shell, 4096);
            if ((time() - $time_start) > 10 ) {
                break;
            }
        }

        $data = str_replace($this->prompt.$in_command,'', $data);
        $data = str_replace($this->prompt, '',$data);
        $data = str_replace($in_command, '',$data);
        return $data;
    }
    function runCommandExec($in_command, $in_returnData = true)
    {
        $o_stream = ssh2_exec($this->conn, $in_command);
        if (!$o_stream) {
            return false;
        }

        $s_data = '';
        if ($in_returnData) {
            stream_set_blocking($o_stream, true);
            while ($tmp = fread($o_stream, 4096)) {
                $s_data .= $tmp;
            }
        }

        fclose($o_stream);
        return $s_data;
    }

}

$a_cisco = array();
foreach($a_cisco as $s_ip) {
    echo "$s_ip\n";
    $o_ssh = new ssh_client;
    if (!$o_ssh->connect($s_ip)) {
        die('No connection');
    }

    if (!$o_ssh->authenticate($username, $password)) {
        die('No Auth');
    }

     $o_ssh->runCommand('configure terminal', false);

    // flush the students acl
    $o_ssh->runCommand('no ip access-list extended myacl', false);

    // re-add the acl
    $o_ssh->runCommand("ip access-list extended myacl", false);

    $o_ssh->runCommand("permit tcp any host 8.8.8.8 eq www", false);
    $o_ssh->runCommand("permit tcp any host 8.8.8.8 eq 443", false);

    $o_ssh->runCommand('copy running-config startup-config',false);
    $o_ssh->runCommand('', false);
    $o_ssh->runCommand('exit',false);
}