我试图将一个值数组传递到meta\\u查询值中。

// Works as expected to return posts with 1474 in featured
\'meta_query\' => array(
                array(
                    \'key\' => \'featured\',  
                    \'value\' => 1474, 
                    \'compare\' => \'LIKE\' 
                ) 
)   

// Works as expected to return posts with 2213 in featured
\'meta_query\' => array(
                array(
                    \'key\' => \'featured\',  
                    \'value\' => 2213, 
                    \'compare\' => \'LIKE\' 
                ) 
)   

但是，当我设置为数组时，它不能正常工作。我试图返回“特色”设置为1474或2213的帖子。

// Does not work, wp_query returns all posts
\'meta_query\' => array(
                array(
                    \'key\' => \'featured\',  
                    \'value\' => array(1474, 2213), 
                    \'compare\' => \'LIKE\' 
                ) 
)   

我也变了，喜欢进去，但没有成功。我希望不要使用多个meta\\u查询语句，因为数组的长度可能会改变。

$qv = [
    \'meta_query\' =>[
        [
            \'key\'     => \'featured\',  
            \'value\'   => [1474, 2213], 
            \'compare\' => \'IN\',      
        ]
    ] 
];
$r = new WP_Query($qv);

SELECT SQL_CALC_FOUND_ROWS  wp_posts.ID 
FROM wp_posts  INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) 
WHERE 1=1  
AND ( 
    ( wp_postmeta.meta_key = \'featured\' AND wp_postmeta.meta_value IN (\'1474\',\'2213\') )
) 
AND wp_posts.post_type = \'post\' 
AND (wp_posts.post_status = \'publish\' OR wp_posts.post_status = \'private\') 
GROUP BY wp_posts.ID 
ORDER BY wp_posts.post_date DESC 
LIMIT 0, 12