Code to create an checkbox of WP Taxonomy in Metabox Class

taxonomy_alchemy

function checkbox_state($term_id, $terms)
{
	foreach ($terms as $term):
		if ($term_id == $term->term_id) 
			echo 'checked'; 
	endforeach;	
}

function checkbox_taxonomy($taxonomy_name, $mb)
{
 		$args = array('name'=>$taxonomy_name);
 		$taxonomy = array_pop(get_taxonomies( $args, 'objects'));
 	?>

 	<div id=five_columns class=checkbox_container>
 		<label class="checkbox-title"><?php echo $taxonomy->labels->name; ?><!--<span>(optional)</span>--></label>
		<div class="panel">
			<?php 
				$terms = get_terms($taxonomy->name, 'orderby=name&hide_empty=0'); 			
				$post_terms = wp_get_post_terms( $mb->current_post_id, $taxonomy->name);
				$mb->the_field($taxonomy->name);
			?>
			
			<ul class="list:effect categorychecklist form-no-clear" id="effectchecklist">
				<?php foreach ($terms as $term): ?>		
			
					<li class="popular-category" id="<?php echo $taxonomy->name;?>">
						<label class="checkbox-label">								
							<input type="checkbox" name="<?php $mb->the_name(); ?>[]" value="<?php echo $term->term_id; ?>"<?php checkbox_state($term->term_id, $post_terms); ?>>
								<?php echo $term->name; ?>
						</label>
					</li>
					
				<?php endforeach; ?>
			</ul>
				
			<!--<select name="<?php $mb->the_name(); ?>">
				<?php foreach ($terms as $term): ?>				
					<option value="<?php echo $term->term_id; ?>"<?php $mb->the_select_state($term->term_id); ?>
						<?php echo '>' . $term->name; ?>
					</option>
				<?php endforeach; ?>
			</select>-->
		
		</div>
		<!--<span>Selecteer <?php echo $taxonomy->labels->name; ?></span>-->
		<input class="add" type="text" name="312" value=""/>
		<a href="#" class="button" style="" onclick="321">Add</a>
	</div>
	
	<?php
}
?>
<!-- usage -->
<?php
checkbox_taxonomy('problem', $mb);
?>