Taxonomy Checkbox Admin Panel

Question

I have a basic Admin panel allowing Admin to save options using Checkbox. Checkboxes are used as multiple selection is necessary for the option

So, Admin Option - Checkbox 1 - Checkbox 2 - Checkbox 3 etc

My Checkboxes are generated on the fly, successfully with

<input type="checkbox" name="firm" id="firm-<?php echo esc_attr( $term->slug ); ?>" value="<?php echo esc_attr( $term->slug ); ?>" <?php checked( true, is_object_in_term( $user->ID, 'firm', $term ) ); ?> /><input type="checkbox" name="firm" id="firm-<?php echo esc_attr( $term->slug ); ?>" value="<?php echo esc_attr( $term->slug ); ?>" <?php checked( true, is_object_in_term( $user->ID, 'firm', $term ) ); ?> />

Then when saving my option, I am trying to do it with

wp_set_object_terms( $user_id, array( $term ), 'firm', false);

BUt only the last term is saved and not the array (if more than 1 checked)

Any idea?

Answer 1

Change the name of the checkboxes fromfirm to firm[].

Then, when you go to save the checkboxes

$terms = $_POST['firm'];

will give you an array of term slugs that can be checked/sanitized prior to using wp_set_object_terms to add the terms...

wp_set_object_terms( $user_id, $terms, 'firm', false);