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					<?php
					$categories = get_categories();
					//$categories = get_categories('parent=0'); 親カテゴリーのみ
					foreach($categories as $category) :
					 
					$cat_id = $category->cat_ID;
					$post_id = 'category_'.$cat_id;
					   
					$catimg = get_field('images',$post_id);
					$img = wp_get_attachment_image_src($catimg, 'full');
					?>

					<li>
						<a href="<?php echo home_url(); ?>/<?php echo $category->category_nicename; ?>">
							<img src="<?php echo $img[0]; ?>" alt="<?php echo $category->cat_name; ?>" />
						</a>
					</li>

					<?php endforeach; ?>