Removing category ID's from a selection list

Question

I have a plugin install called uCan post so registered users can post and what not, but I am wanting to have two category lists for them to choose from.

one is a country

the other is an activity list.

Now I have the two lists available but I want to exclude certain category ID's from one of the lists.

Here is the code for the category lists.

<!-- START EVENTS CATEGORIES -->
  <br />
  <?php
    if($this->ucan_options['uCan_Show_Categories'])
    {
  ?>

      <label>
        <?php echo __('Select Your Experience', 'ucan-post'); ?>:
      </label>
      <select name="ucan_submission_category">
        <?php
          foreach($categories as $category)
            if($category->cat_ID == $_POST['ucn_submission_category'])
              echo '<option value="'.$category->cat_ID.'" selected="selected">'.$category->name.'&nbsp;&nbsp;</option>';
            else
              echo '<option value="'.$category->cat_ID.'"">'.$category->name.'&nbsp;&nbsp;</option>';
        ?>
      </select>
  <?php
    }
  ?>
  <!-- END EVENTS CATEGORIES -->

Any help would be greatly appreciated!

Thank you

Answer 1

Ok then time to move my response into an answer, because it seems you just want to exclude categories from the loop in the above code..

Assuming you're alright to modify this file(a plugin update would overwrite it), then simply conditionalise your loop like so..

<?php
$excluded = array( 1, 2, 3 );
foreach($categories as $category)
    if( in_array( $category->cat_ID, $excluded ) )
        continue;
    else
        echo '<option value="'.$category->cat_ID.'"'. selected( $category->cat_ID, $_POST['ucn_submission_category'], false ).'>'.$category->name.'&nbsp;&nbsp;</option>';
?>

Untested, so let me know if any problems.

Replace 1,2 and 3 with the IDs of the categories you wish to exclude.