skeeks\cms\console\controllers\InitController::setCookieValidationKey PHP Method

    function setCookieValidationKey($root, $paths)
    {
        foreach ($paths as $file) {
            echo "   generate cookie validation key in {$file}\n";
            $file = $root . '/' . $file;
            $length = 32;
            $bytes = openssl_random_pseudo_bytes($length);
            $key = strtr(substr(base64_encode($bytes), 0, $length), '+/=', '_-.');
            $content = preg_replace('/(("|\')cookieValidationKey("|\')\\s*=>\\s*)(""|\'\')/', "\\1'{$key}'", file_get_contents($file));
            file_put_contents($file, $content);
        }
    }