Joomla如何获取标签

目录和文章都可以有标签

Joomla通过Joomla\libraries\cms\helper\tags.php下的JHelperTags类来获取标签

通过public function getItemTags($contentType, $id, $getTagData = true)函数来获取标签

返回的是一个数组，数组里是数据库示例；

用法如下：

			$tagh = new JHelperTags ();
			$cattags = $tagh->getItemTags ( 'com_content.category', $item->id );
			if (! empty ( $cattags )) {
				var_dump ( $cattags );
				foreach ( $cattags as $cattag ) {
					var_dump ( $cattag->alias );
				}
			}

返回值为：

array (size=2)
  0 => 
    object(stdClass)[750]
      public 'tag_id' => string '8' (length=1)
      public 'id' => string '8' (length=1)
      public 'parent_id' => string '1' (length=1)
      public 'lft' => string '3' (length=1)
      public 'rgt' => string '4' (length=1)
      public 'level' => string '1' (length=1)
      public 'path' => string '3levelks' (length=8)
      public 'title' => string '三级科室' (length=12)
      public 'alias' => string '3levelks' (length=8)
      public 'note' => string '' (length=0)
      public 'description' => string '' (length=0)
      public 'published' => string '1' (length=1)
      public 'checked_out' => string '0' (length=1)
      public 'checked_out_time' => string '0000-00-00 00:00:00' (length=19)
      public 'access' => string '1' (length=1)
      public 'params' => string '{"tag_layout":"","tag_link_class":"label label-info"}' (length=53)
      public 'metadesc' => string ' ' (length=1)
      public 'metakey' => string ' ' (length=1)
      public 'metadata' => string '{"author":"","robots":""}' (length=25)
      public 'created_user_id' => string '499' (length=3)
      public 'created_time' => string '2015-12-18 02:06:52' (length=19)
      public 'created_by_alias' => string '' (length=0)
      public 'modified_user_id' => string '499' (length=3)
      public 'modified_time' => string '2015-12-18 02:07:37' (length=19)
      public 'images' => string '{"image_intro":"","float_intro":"","image_intro_alt":"","image_intro_caption":"","image_fulltext":"","float_fulltext":"","image_fulltext_alt":"","image_fulltext_caption":""}' (length=173)
      public 'urls' => string '{"0":"{\"0\":\"{\\\"0\\\":\\\"{}\\\"}\"}"}' (length=42)
      public 'hits' => string '3' (length=1)
      public 'language' => string '*' (length=1)
      public 'version' => string '1' (length=1)
      public 'publish_up' => string '2015-12-18 02:06:52' (length=19)
      public 'publish_down' => string '2015-12-18 02:06:52' (length=19)
  1 => 
    object(stdClass)[748]
      public 'tag_id' => string '10' (length=2)
      public 'id' => string '10' (length=2)
      public 'parent_id' => string '1' (length=1)
      public 'lft' => string '7' (length=1)
      public 'rgt' => string '8' (length=1)
      public 'level' => string '1' (length=1)
      public 'path' => string 'neike' (length=5)
      public 'title' => string '内科' (length=6)
      public 'alias' => string 'neike' (length=5)
      public 'note' => string '' (length=0)
      public 'description' => string '' (length=0)
      public 'published' => string '1' (length=1)
      public 'checked_out' => string '0' (length=1)
      public 'checked_out_time' => string '2015-12-19 00:25:42' (length=19)
      public 'access' => string '1' (length=1)
      public 'params' => string '{"tag_layout":"","tag_link_class":"label label-info"}' (length=53)
      public 'metadesc' => string ' ' (length=1)
      public 'metakey' => string ' ' (length=1)
      public 'metadata' => string '{"author":"","robots":""}' (length=25)
      public 'created_user_id' => string '499' (length=3)
      public 'created_time' => string '2015-12-19 00:25:42' (length=19)
      public 'created_by_alias' => string '' (length=0)
      public 'modified_user_id' => string '0' (length=1)
      public 'modified_time' => string '2015-12-19 00:25:42' (length=19)
      public 'images' => string '{"image_intro":"","float_intro":"","image_intro_alt":"","image_intro_caption":"","image_fulltext":"","float_fulltext":"","image_fulltext_alt":"","image_fulltext_caption":""}' (length=173)
      public 'urls' => string '{}' (length=2)
      public 'hits' => string '0' (length=1)
      public 'language' => string '*' (length=1)
      public 'version' => string '1' (length=1)
      public 'publish_up' => string '2015-12-19 00:25:42' (length=19)
      public 'publish_down' => string '2015-12-19 00:25:42' (length=19)