Escaping quotes in a PHP script using ssh2_exec

Question

I need some help with escaping the quotes in this script, I have code above and below, but it does not pertain to this because if I just issue a screen -d -m -S minecraft, it creates one fine. Any help would be amazing because i've been trying for an hour now, Thanks!

 if (!($stream = ssh2_exec($con, 'screen -d -m -S minecraft -p 0 -X stuff "\printf "\say This is a test.\r"\"\' ))) {
        echo "fail: unable to execute command\n";
    } else {
        // collect returning data from command
        stream_set_blocking($stream, true);
        $data = "";
        while ($buf = fread($stream,4096)) {
            $data .= $buf;
        }
        echo $data;
        fclose($stream);
    }

Answer 1

Shouldn't the \ should go before the ". Also, from your description, it sounds like that you only want to run "screen -d -m -S minecraft" and it looks like you have an extra printf in there.

if (!($stream = ssh2_exec($con, "screen -d -m -S minecraft")))

http://php.net/manual/en/language.types.string.php

Answer 2

You only need to change "\ to \".