Function from function.php

Hi !

I try to call into a widget a function from function.php file. I call the function in a widget into the sidebar with this:

<?php add_login_logout_link($items, $args); ?>

My function from function .php is:

<?php
function add_login_logout_link($items, $args)
{
  if(is_user_logged_in())
  {
    $newitems = $$items;
    $newitems .= '
                  <li><a class="button wc-forward" title="mon compte" href="/mon-compte/">Mon compte</a></li>
                  <li><a class="button wc-forward" title="se déconnecter" href="'. wp_logout_url('index.php') .'">Se déconnecter</a></li>';
  }
  else
  {
    $newitems = $items;
    $newitems .= '<li><a class="button wc-forward" title="Login" href="'. wp_login_url('/catalogue-investissement/') .'">Se connecter</a></li>';
  }

  return $newitems;
}
?>

Nothing is display this that. I try to use $GLOBALS[‘variablex’] but it doesn’t work.

Thanks for your help. I keep trying to find !

https://ww.wp.xz.cn/plugins/php-code-widget/