我正在尝试创建一个WP\\u查询，其结果参数如下：

$args = array(
    \'post_type\' => array( \'post\', \'custom\' ),
    \'meta_query\' => array(
       \'relation\' => \'AND\',
          array(\'key\' => \'key1\', \'value\' => \'value1\'),
          array(\'key\' => \'key2\', \'value\' => \'value2\'),
          array(\'key\' => \'key3\', \'value\' => \'value3\')
    )
);

我真正要做的是创建一个高级搜索，它可以让元值像这样搜索：

//$queryData = array();
//parse_str($_SERVER[\'QUERY_STRING\'], $queryData);  

$queryData = array(\'key1\' => \'value1\',\'key2\' => \'value2\',\'key3\' => \'value3\');

$args = array(
    \'post_type\' => array( \'post\', \'custom\' ),
    \'meta_query\' => array(
       \'relation\' => \'AND\',

       /* ADD $queryData loop HERE*/

    )
);

我试图避免手动创建每个搜索参数：

          array(\'key\' => \'key1\', \'value\' => \'value1\'),
          array(\'key\' => \'key2\', \'value\' => \'value2\'),
          array(\'key\' => \'key3\', \'value\' => \'value3\')

只需使用$\\u SERVER[\'QUERY\\u STRING\']创建数组并循环，将数组添加到meta\\u QUERY

我很难将数组合并或添加到meta\\u查询

/**
 * Convert query string to meta query.
 */
function query_string_to_meta_query( $query_string ) {
    $meta_query = array( \'relation\' => \'AND\' );

    foreach ( wp_parse_args( $query_string ) as $key => $value ) {
        $meta_query[] = array( \'key\' => $key, \'value\' => $value );
    }

    return array(
        \'post_type\'  => array( \'post\', \'custom\' ),
        \'meta_query\' => $meta_query,
    );
}