security example

}

if (! function_exists('csrf_token')) {
    /** * Returns the CSRF token name. * Can be used in Views when building hidden inputs manually, * or used in javascript vars when using APIs. */
    function csrf_token(): string
    {
        return Services::security()->getTokenName();
    }
}

if (! function_exists('csrf_header')) {
    /** * Returns the CSRF header name. * Can be used in Views by adding it to the meta tag * or used in javascript to define a header name when using APIs. */
    function csrf_header(): string
    {
        

    public function before(RequestInterface $request, $arguments = null)
    {
        if (! $request instanceof IncomingRequest) {
            return;
        }

        $security = Services::security();

        try {
            $security->verify($request);
        } catch (SecurityException $e) {
            if ($security->shouldRedirect() && ! $request->isAJAX()) {
                return redirect()->back()->with('error', $e->getMessage());
            }

            throw $e;
        }
    }

    

use Config\Services;

// CodeIgniter Security Helpers
if (! function_exists('sanitize_filename')) {
    /** * Sanitize a filename to use in a URI. */
    function sanitize_filename(string $filename): string
    {
        return Services::security()->sanitizeFilename($filename);
    }
}

if (! function_exists('strip_image_tags')) {
    /** * Strip Image Tags */
    function strip_image_tags(string $str): string
    {
        return preg_replace(
            [