active-class-for-first-post

function stock_carousel_post($atts) {
extract( shortcode_atts( array(
        'count' => -1 ,
        'type' => 'page',
        'custom_css' => '',
    ), $atts) );
    
    $q = new WP_Query(
        array(
            'posts_per_page' => $count, 
            'post_type' => 'post', 
            
        )
    );      
          
    $list = '<div id="carouselExampleControls" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
        ';
    
    while($q->have_posts()) : $q->the_post();
        $post_count = 0;
        $idd = get_the_ID();
        $post_content = get_the_excerpt();
        $list .= '<div class="carousel-item ' . if($post_count <1){ echo 'active ' } . ' carouselstyle" >
        
        <div class="carousel-caption d-none d-md-block" >
            <h3>'.get_the_title().'</h3><p>'.get_the_content().'</p>
        </div>
        ';
        $post_count++;
    
    endwhile;

    $list.= '  </div>
  <a class="carousel-control-prev" href="#carouselExampleControls" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleControls" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>';
    wp_reset_query();
    return $list;
}
add_shortcode('cowse', 'stock_carousel_post');