<?php if( $terms = get_terms( array( 'taxonomy' => 'category', // to make it simple I use default categories 'orderby' => 'name' ) ) ) : // if categories exist, display the dropdown echo '<div class="isotope-filter-wrapper">'; echo '<select name="categoryfilter"><option value="">Select category...</option>'; foreach ( $terms as $term ) : echo '<option value="' . $term->term_id . '">' . $term->name . '</option>'; // ID of the category as an option value endforeach; echo '</select>'; echo '</div>'; endif; ?>
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