Title: Checkboxes and PHP Warnings
Last modified: February 25, 2021

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# Checkboxes and PHP Warnings

 *  [themightyant](https://wordpress.org/support/users/themightyant/)
 * (@themightyant)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/checkboxes-and-php-warnings/)
 * Checkboxes (e.g. Categories) don’t work in the latest version. A fix has been
   suggested here that works. [https://wordpress.org/support/topic/check-boxes-3/](https://wordpress.org/support/topic/check-boxes-3/)
 * Additionally there are 3 PHP warnings that come up each time a theme is saved(
   it works fine after. These are
 * Warning: count(): Parameter must be an array or an object that implements Countable
   in …/plugins/admin-color-schemer/lib/phpsass/tree/SassMixinNode.php on line 66
 * Warning: Cannot modify header information – headers already sent by (output started
   at …/plugins/admin-color-schemer/lib/phpsass/tree/SassMixinNode.php:66) in …/
   wp-includes/pluggable.php on line 1296
 * Warning: Cannot modify header information – headers already sent by (output started
   at …/plugins/admin-color-schemer/lib/phpsass/tree/SassMixinNode.php:66) in …/
   wordpress-cms/wp-includes/pluggable.php on line 1299
 * [@helen](https://wordpress.org/support/users/helen/) [@markjaquith](https://wordpress.org/support/users/markjaquith/)
   is there an update coming? It’s still a great little plugin.
    Many thanks

The topic ‘Checkboxes and PHP Warnings’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [themightyant](https://wordpress.org/support/users/themightyant/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/checkboxes-and-php-warnings/)
 * Status: not resolved