我知道您正在使用ACF，但我想给出一个解决方案，在这个过程中我会更深入一些，并将其分解到不同的步骤中。我还没有使用ACF，所以它可以在没有任何插件的情况下工作。

首先，函数我将所需的不同部分分解为可以在其他地方重用的函数。

我也试着写得恰到好处docblocks, 因此，如果您有一个支持它的编辑器，就会提醒您函数的作用，并且它会阻止您传递任何错误类型的变量。

这可以粘贴到您的主题中functions.php, 或一个名为fabians-functions.php 然后只需将以下行添加到functions.php.

require_once __DIR__ . \'/fabians-functions.php\';

/**
 * Get meta data key/value pairs.
 *
 * Pass an array of meta keys, get an array of
 * key/value pairs.
 *
 * @param array $meta_keys the meta keys you want to fetch.
 * @param int   $post_id the post ID you want to fetch them from.
 * @return array an associative array with meta_key => meta_value.
 */
function get_multiple_meta_values( array $meta_keys, int $post_id ) {
    $output_meta_key_value_pairs = array();
    foreach ( $meta_keys as $meta_key ) {
        $meta_value = get_post_meta( $post_id, $meta_key, true );
        if ( $meta_value ) {
            $output_meta_key_value_pairs[] = array(
                $meta_key => $meta_value,
            );
        }
    }
    // Flatten the array and remove any invalid entries.
    return array_merge( ...array_filter( $output_meta_key_value_pairs ) );
}

/**
 * Fetch posts with same meta vaues
 *
 * Pass in an associative array with the custom fields
 * you want to use to find similar posts.
 *
 * We will fetch one post per meta key/value passed.
 * We will not return the current post.
 * We will not return the same post twice.
 *
 * @param array $meta_collection an associative array with meta_key => meta_value.
 * @return WP_Post[] an array of WP Posts.
 */
function get_posts_with_same_meta( array $meta_collection ) {
    $output          = array();
    $wp_ignore_posts = array( get_the_ID() );

    // Now let\'s go trhough each of the meta fields you want to find posts on.
    foreach ( $meta_collection as $key => $value ) {

        $args = array(
            \'post_type\'      => \'post\',
            // Only one posts.
            \'posts_per_page\' => 1,
            \'post_status\'    => \'publish\',
            // That shares the first meta key/value pair.
            \'meta_key\'       => "$key",
            \'meta_value\'     => "$value",
            /**
             * Because we don\'t want to end up short, we need to
             * filter out any posts that was previously fetched.
             * We don\'t want duplicates to show up.
             */
            \'post__not_in\'   => $wp_ignore_posts,
        );

        $the_query = new WP_Query( $args );
        if ( $the_query->have_posts() ) :
            while ( $the_query->have_posts() ) :
                $the_query->the_post();
                // If we got a hit, add that post to $output[].
                $output[] = $the_query->post;
                // Also, add that posts ID to the ignore-list, so we won\'t fetch it again.
                $wp_ignore_posts[] = get_the_ID();
            endwhile;
        endif;
        wp_reset_postdata();
    }
    return $output;
}

然后，有趣的是，现在我们已经完成了所有设置，我们可以开始使用页面模板中的功能了。

// Setup - Define the meta keys you wish to use.
$meta_keys_i_want_to_use = array( \'color\', \'background_color\', \'lastname\' );

// Fetch the meta values from the current post and save in $wpm_meta.
// You can set any number of meta values.
$wpm_meta = get_multiple_meta_values( $meta_keys_i_want_to_use, get_the_ID() );

// Get posts.
$the_posts = get_posts_with_same_meta( $wpm_meta );

// Do what you want with them.
foreach ( $the_posts as $p ) {
    // The post is available as $p.
    ?>
    <div>
    <a href="<?php the_permalink( $p ); ?>">
    <h3><?php echo esc_html( $p->post_title ); ?></h3>
    <img src="<?php echo esc_attr( get_the_post_thumbnail_url( $p, \'thumbnail\' ) ); ?>"></a>
    </div>
    <?php
}