function brainfuck_generate($o) {
    $ret = "++++++++++[>+++++++>++++++++++>+++>+<<<<-]>";
    $a = array(0, 70, 100, 30, 10);
    $p = 1;
    for ($i = 0; $i < strlen($o); $i++) {
        $c = ord($o{$i});
        
        $diff = 255;
        for ($j = 0; $j < sizeof($a); $j++) {
            if (abs($c - $a[$j]) < abs($diff)) {
                $w = $j;
                $diff = $c - $a[$j];
            }
        }
        
        if ($w > $p)
            $ret .= str_repeat('>', $w - $p);
        else
            $ret .= str_repeat('<', $p - $w);
        $p = $w;
        
        if ($diff > 0)
            $ret .= str_repeat('+', $diff);
        else
            $ret .= str_repeat('-', abs($diff));
        $a[$w] += $diff;

        $ret .= ".";        
    }
    return $ret;
}