[PR]
/*タグ名でタームの数を取得*/<?php $tag_properties = get_term_by( 'name', 'foo', 'post_tag' ); echo $tag_properties->count; ?>/*スラッグ名でタームの数を取得*/<?php $tag_properties = get_term_by( 'slug', 'foo', 'post_tag' ); echo $tag_properties->count; ?>