Undefined variable $checkbox_text

  • I see a PHP Warning: “Undefined variable $checkbox_text in /home/…/wp-content/plugins/comments-subscribe-checkbox/front-end/add-checkbox-to-comments.php on line 25“.

    I checked the code, a variable $checkbox_text is not used anywhere, only on that line. Is it a redundant one?

    By position, $checkbox_text correspond to the $args variable of the apply_filters() function (for additional parameters to pass to the callback functions), but here it is not playing any role.

    Can be this solved?

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