第一次查询，选择找到的记录

$old_args = array(
    \'post_type\' => \'product\',
    \'meta_query\' => array(
        \'relation\' => \'AND\',
        array(
            \'key\' => \'_sale_price_dates_to\',
            \'value\' => $timenow,
            \'compare\' => \'>=\',
            \'type\' => \'numeric\'
        ) ,
        array(
            \'key\' => \'_sale_price_dates_to\',
            \'value\' => \'\',
            \'compare\' => \'!=\'
        ) ,
        array(
            \'key\' => \'wccaf_location_zipcode\',
            \'value\' => array(
                \'78774\',
                \'73344\'
            ) ,
            \'compare\' => \'IN\'
        )
    ) ,
    \'orderby\' => \'meta_value\',
    \'order\' => \'ASC\',
    \'tax_query\' => array(
        array(
            \'taxonomy\' => \'product_cat\',
            \'field\' => \'id\',
            \'terms\' => $cat_id
        )
    )
);
$loop1 = new WP_Query($old_args);
$posts = array();

if ($loop1->have_posts()):
    while ($loop1->have_posts()):
        $loop1->the_post();
        $posts[] = $loop1->post->ID; // Storing the post_ID\'s result in array.
    endwhile;
else:
    echo "No product Found";
endif; //loop close

第二次查询，选择未找到的记录

$new_args = array(
    \'post_type\' => \'product\',
    \'meta_query\' => array(
        \'relation\' => \'AND\',
        array(
            \'key\' => \'_sale_price_dates_to\',
            \'value\' => $timenow,
            \'compare\' => \'>=\',
            \'type\' => \'numeric\'
        ) ,
        array(
            \'key\' => \'_sale_price_dates_to\',
            \'value\' => \'\',
            \'compare\' => \'!=\'
        ) ,
        array(
            \'key\' => \'wccaf_location_zipcode\',
            \'value\' => array(
                \'78774\',
                \'73344\'
            ) ,
            \'compare\' => \'NOT IN\'
        )
    ) ,
    \'orderby\' => \'meta_value\',
    \'order\' => \'ASC\',
    \'tax_query\' => array(
        array(
            \'taxonomy\' => \'product_cat\',
            \'field\' => \'id\',
            \'terms\' => $cat_id
        )
    )
);
$loop2 = new WP_Query($new_args);
$result_not_found_array = array();

if ($loop2->have_posts()):
    while ($loop2->have_posts()):
        $loop2->the_post();
        $posts[] = $loop2->post->ID; // Storing the post_ID\'s result in array.
    endwhile;
else:
    echo "No product Found";
endif; //loop close

将结果合并到第三个数组中

$post_ids = array_merge($result_found_array, $result_not_found_array);
$loop = new WP_Query(array(
    \'post_type\' => \'product\',
    \'post__in\' => $posts,
    \'paged\' => $paged,
    \'posts_per_page\' => 5
));

现在我想根据合并数组索引得到结果。我想显示首先找到的结果和最后未找到的结果。例如：-合并数组为101,104,103,106. 就像那样，我想要我的结果。

$loop = new WP_Query(
    array(
        \'post_type\'      => \'product\',
        \'post__in\'       => $posts, 
        \'paged\'          => $paged,
        \'posts_per_page\' => 5,
        \'orderby\'        => \'post__in\'
    )
);