这为每个帖子提供了相同的视图值，我如何为每个帖子获取下一个var？

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

<a href="<?php the_permalink(); ?>"><?php the_title(); ?>

    <?php
    // set the meta_key to the appropriate custom field meta key
    $meta_key = \'views\';
    $views = $wpdb->get_var( $wpdb->prepare( 
        "
            SELECT meta_value
            FROM $wpdb->postmeta 
            WHERE meta_key = %s
        ", 
        $meta_key
    ) );
    echo "<p>Total views {$views}</p>";
    ?> 

    <?php endwhile; ?>