Ajax load custom post type but always appearance “0”

I want to get custom post type list by ajax code, but it always appearance “0” on html.
here is my code:

<div class="daily_select">
          <label> Ch?n T?nh Thành </label>
          <?php  wp_dropdown_categories( array(
	'show_option_all'    => '',
  'hierarchical'       => 1,
  'taxonomy'           => 'daily_cat',
  'hide_if_empty'      => 0,
  'name'               => 'cat',
	'id'                 => 'daily_cat',)); ?>
            </div>
          <script type="text/javascript">
                (function($){
                    $("#daily_cat").change(function(){
                        var sub_id = $("#daily_cat option:selected").val();
              									$("#daily_listitem").empty();
                        $("#loading").fadeIn('slow');
                    	$.ajax({
                    		type: "post",
                            url: "<?php echo admin_url( 'admin-ajax.php' ); ?>",
                            data: { action: 'get_daily', sub_id: sub_id },
                    		beforeSend: function() {$("#loading").fadeIn('slow');},
                    		success: function(data) {
                                $("#loading").fadeOut('slow');
                                $("#daily_listitem").append(data);
                    		}
                    	});
                    });
                })(jQuery);
            </script>
    <div  id="loading" style="display: none;text-align:center;color:red">Loading...</div>
          <div id="daily_listitem">
 </div>

And this is my function

function get_daily()
        	{
            if(!isset($_POST['sub_id'])){$_POST['sub_id']=21;}
            $args = array(
              'post_type' => 'daily',
              'tax_query' => array(
        array(
            'taxonomy' => 'daily_cat',
            'field' => 'term_id',
            'terms' =>  $_POST['sub_id']
        )
    )
						); ?>
<ul class="listitem">
<?php
           $my_query = new WP_Query( $args );
                if( $my_query->have_posts() ) : while( $my_query->have_posts() ) : $my_query->the_post();?>
        <li class="daily-item" data-map="<?php the_field('test'); ?>">
              <h5><?php the_title(); ?></h5>
          <div class="daily-item-body"><?php the_content(); ?></div>
              </li>
         <?php  endwhile; endif; ?></ul>
      <?php  	}
  add_action( 'wp_ajax_get_daily', 'get_daily' );
  add_action('wp_ajax_nopriv_get_daily', 'get_daily');

Thank all !

[Moderator note: code fixed. Please wrap code in the backtick character or use the code button.

Only images from certain white listed sites will appear here. The URL must end in a proper image filename, thus URLs from Google Images will not work. I suggest you post images on imgur.com if you want them to appear here]

• This topic was modified 7 years, 7 months ago by aminor1993.
• This topic was modified 7 years, 7 months ago by bcworkz. Reason: broken code, bad image links