function getRandomizeText($words)
    {
        $count = count($words);
        for($i=0; $i<$count; $i++)
        {
            $rnd = mt_rand(0, count($words)-1);
            $tmp = $words[$rnd];
            $words[$rnd] = $words[$i];
            $words[$i] = $tmp;
        }
        return implode(" ", $words);
    }
    
    $file = file("file.txt");
    for($i = 0; $i<count($file); $i++)
    {
        $words = explode(" ", $file[$i]);
        echo getRandomizeText($words) . "<br />";
    }