thumbnails
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	function thumbnails() {
#		$img = module('dynamic')->placeholder_img(array('width' => 300, 'height' => 200));
		$img = url('/dynamic/placeholder/300x200');

		return _class('html')->thumbnails([
			[
				'img'	=> $img,
			],
			[
				'img'	=> $img,
				'head'	=> 'Thumbnail label 4',
			],
			[
				'img'	=> $img,
				'alt'	=> '300x200',
				'head'	=> 'Thumbnail label 1',
				'body'	=> '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
					<p><a href="#" class="btn btn-primary">Action</a> <a href="#" class="btn">Action</a></p>',
			],
			$img,
			[
				'img'	=> $img,
				'alt'	=> '300x200',
				'head'	=> 'Thumbnail label 2',
				'body'	=> '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>',
			],
			$img,
		], ['columns' => 3]);
	}
	function thumbnails($data = [], $extra = []) {
		$items = [];
		$columns = (int)$extra['columns'] ?: 3;
		$row_class = 'span'.round(12 / $columns).' col-md-'.round(12 / $columns);
		foreach ((array)$data as $k => $v) {
			if (!is_array($v)) {
				$img_src = $v;
				$v = [];
			} else {
				$img_src = $v['img'];
			}
			$class_item = $v['class_item'] ?: $extra['class_item'];
			$tag = $this->_is_bs3 ? 'div' : 'li';
			$items[] =
				'<'.$tag.' class="'.$row_class. ($class_item ? ' '.$class_item : ''). ($v['style'] ? ' style="'.$v['style'].'"' : '').'">
					<div class="thumbnail">
						<img alt="'._prepare_html($v['alt'] ?: $v['head']).'" src="'._prepare_html($img_src).'" />
						'.(($v['head'] || $v['body']) ? '<div class="caption">'.($v['head'] ? '<h3>'._prepare_html($v['head']).'</h3>' : '').' '.$v['body'].'</div>' : '').'
					</div>
				</'.$tag.'>';
		}
		$body = [];
		$tag = $this->_is_bs3 ? 'div' : 'ul';
		foreach (array_chunk($items, $columns) as $_items) {
			$id = __FUNCTION__.'_'.++$this->_ids[__FUNCTION__];
			$body[] = '<'.$tag.' class="thumbnails'.($extra['class'] ? ' '.$extra['class'] : '').'" id="'.$id.'">'.implode(PHP_EOL, (array)$_items).'</'.$tag.'>';
		}
		return implode(PHP_EOL, $body);
	}
Thumbnail label 4

Thumbnail label 4

300x200

Thumbnail label 1

Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.

Action Action

300x200

Thumbnail label 2

Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.