wordpress通过元数据和元值获取产品

Question

我正在尝试按元值和元键显示产品。我使用下面的代码来验证元键和元值。现在，如果没有值为“yes_feat”的meta_keys，则不会打印产品。这太棒了！

问题是，如果只有 1 个产品的 meta_keys 值为“yes_feat”，则所有其他产品也会打印。如何使其仅显示具有元值“yes_feat”的产品

        $params = array(

            'post_type' => 'product',  
            'meta_key' => '_featured',  
            'meta_value' => 'yes_feat',  
            'posts_per_page' => 5 

        );
        $wc_query = new WP_Query($params);
        global $post, $product;

        if ($wc_query->have_posts()) { 
            // i am only trying to print products with meta_value = yes_feat
            // but if the statement above is true it prints all products
             echo "print products that have meta_value = yes_feat";
        }   
        else 
        {
            echo "nothing found";
        }

多谢

Answer 1

在 WP_Query 参数中添加元查询

<?php
$params = array(
    'post_type' => 'product',
    'meta_query' => array(
        array('key' => '_featured', //meta key name here
              'value' => 'yes_feat', 
              'compare' => '=',
        )
    ),  
    'posts_per_page' => 5 

);
$wc_query = new WP_Query($params);
global $post, $product;

if( $wc_query->have_posts() ) {

  while( $wc_query->have_posts() ) {

    $wc_query->the_post();

        $wc_query->post_name;
        echo "print products that have meta_value = yes_feat";
        $yes_feat = get_post_meta($wc_query->ID, '_featured',true );
  } // end while

} // end if
 else 
{
    echo "nothing found";
}

wp_reset_postdata();
?>