How to query custom post with shortcode

<!-----------How to query custom post with shortcode--------------->

1.First register custom post in fuctions.php like bellow....

function portfolio_list_custom_post() {
	register_post_type( 'portfolio_items',
		array(
			'labels' => array(
				'name'              => __( 'portfolios' ),
				'singular_name'     => __( 'portfolio' ),
				'all_items'         => __( 'All portfolio' ),
				'add_new_item'      => __( 'Add new portfolio' ),
				'search_items'      => __( 'Search portfolio' ),
				'not_found'         => __( 'No portfolio found,Please!!! try with another keyword' ),
				'not_found_in_trash' => __( 'No portfolio found in trash' ),
				'parent_item'       => __( 'Parent portfolio' ),
				'parent_item_colon' => __( 'Parent portfolio' ),
				'edit_item'         => __( 'Edit portfolio' ),
				'update_item'       => __( 'Update portfolio' ),
				'view_item'         => __( 'View portfolio' ),
				'new_item_name'     => __( 'New portfolio' ),
				'menu_name'         => __( 'portfolio' )


			),
			'public' => true,
			'menu_icon' => 'dashicons-nametag',
			'supports' => array('title', 'editor','thumbnail'),
			'has_archive' => true,
			'menu_position' => 8,
			'rewrite' => array('slug' => 'portfolio_item')


		)

	);


}
add_action('init', 'portfolio_list_custom_post');

2.Than add theme support and images size in custom post....

add_theme_support( 'post-thumbnails' );
add_image_size( 'portfolio-big', 298, 460, true );

3.Than query your post with shortcode in functions.php or shortcode.php file.....

function portfolio_list_shortcode($atts){
	extract( shortcode_atts( array(
		'title' => '',
		'dsc' => '',
		'more' => '',
		'build' => '',
	), $atts, 'portfolio' ) );

    $q = new WP_Query(
        array('posts_per_page' => 4, 'post_type' => 'portfolio_items')
        );


	$list = '

	<!----your content rapper--->

	<div id="portfolio" class="portfolio-area top-40">
  <div class="container">
    <div class="heading-area text-center bottom-30 wow fadeInUp" data-wow-duration="0.6s" data-wow-delay="0.3s">
      <h4 class="heading large">
        '.$title.'
      </h4>
      <span class="sub-heading">
        '.$dsc.'
      </span>
    </div>

    <div id="portfolio-area" class="top-40">
      <div class="row onepixel">';
	while($q->have_posts()) : $q->the_post();
		$idd = get_the_ID();

		$portfolio_big_img = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'portfolio-big' );

		$list .= '

		<!---your dynamic content--->

        <div class="col-md-3 col-sm-6 bottom-1 wow fadeInRight" data-wow-duration="0.6s" data-wow-delay="0.6s">
          <div class="portfolio-item">
            <div class="portfolio-image">
              <a href="portfolio-detail.html" title="">
                <img src="'.$portfolio_big_img[0].'" alt="" class="img-responsive">
  </a>
  </div>

  <div class="portfolio-info">
    <div class="portfolio-info-inner clearfix">
      <div class="portfolio-title">
        <h4 class="bottom-0">
          <a href="portfolio_detail.html">
            '.get_the_title().'
          </a>
        </h4>
      </div>
      <div class="portfolio-star">
        <a href="http://localhost/rrf/wp-content/uploads/2014/08/Desert1.jpg">
          <i class="fa fa-star-o">
          </i>
        </a>
      </div>
      <div class="portfolio-link">
        <a href="'.get_permalink().'">
          <i class="fa fa-link">
          </i>
        </a>
      </div>
    </div>
  </div>

  </div>

  </div>

		';
	endwhile;
	$list.= '

	<!---your cotent rapper end----->

			</div>

		  </div>

		  <div class="button-group text-center top-30">
			<a href="'.$more.'" class="button wow fadeInRight" data-wow-duration="0.6s" data-wow-delay="0.3s">
			  <span>
				View more projects
			  </span>
			  <span class="icon">
				<i class="fa fa-briefcase">
				</i>
			  </span>
			</a>
			<a href="'.$build.'" class="button black wow fadeInLeft" data-wow-duration="0.6s" data-wow-delay="0.6s">
			  <span>
				Build your own
			  </span>
			  <span class="icon">
				<i class="fa fa-database">
				</i>
			  </span>
			</a>
		  </div>

		  </div>

		</div>

';
	wp_reset_query();
	return $list;
}
add_shortcode('portfolio', 'portfolio_list_shortcode');


4.Next call your shortcode in index.php like bellow ....

<?php echo do_shortcode('[portfolio title="Recent Projects" dsc="the latest work of our team" more="#" build="#"]'); ?>


বি:দ্র: যদি shortcode এর অংশ টুকু আলাদা file -এ করতে হয় তাহলে inc নামে একটি folder করে shorcode.php file এর মধ্যে করতে হবে এবং shorcode.php file টিকে functions.php file -এ call করতে হবে এভাবে.......

include_once('inc/shortcode.php');