WordPress Snippet

/**
 * タグslug　から　タグID　を返す　関数
 *
 *
 *
 *
 */

function tag_slug2id($slug){

	$obj_tags= get_the_tags();
	
	$tag_id= "";
	if ($obj_tags) {
	
		foreach($obj_tags as $tag) {
		
			if($tag->slug== $slug){
				$tag_id= $tag->term_id;
				break;
			}
		}
	}
	return $tag_id;
}