Astra_Ext_Blog_Pro_Markup::calculate_reading_time( int $post_id )

		public function calculate_reading_time( $post_id ) {

			$post_content       = get_post_field( 'post_content', $post_id );
			$stripped_content   = strip_shortcodes( $post_content );
			$strip_tags_content = wp_strip_all_tags( $stripped_content );
			$word_count         = count( preg_split( '/\s+/', $strip_tags_content ) );
			$reading_time       = ceil( $word_count / 220 );

			return $reading_time;
		}