我正在尝试编写一个使用我创建的几个自定义用户元字段的搜索，但在实现它们时遇到了困难。基本上有相同的问题this guy 我也解决了这个问题。

              $exclude = array( \'1\' ); 
              $args1 = array(
                \'exclude\'        => $exclude,
                \'search\'         => \'*\' . $search_query . \'*\',
                \'search_columns\' => array(
                  \'user_login\',
                  \'user_nicename\',
                  \'user_email\',
                  \'user_url\',
                ),
              );

              $args2 = array(
                \'exclude\'    => $exclude,
                \'meta_query\' => array(
                  \'relation\' => \'OR\',
                  array(
                    \'key\'     => \'first_name\',
                    \'value\'   => $search_query,
                    \'compare\' => \'LIKE\'
                  ),
                  array(
                    \'key\'     => \'last_name\',
                    \'value\'   => $search_query,
                    \'compare\' => \'LIKE\'
                  ),
                  array(
                    \'key\'     => \'nickname\',
                    \'value\'   => $search_query,
                    \'compare\' => \'LIKE\'
                  ),
                ),
              );

              // queries
              $search_query = new WP_User_Query( $args1 );
              $meta_query = new WP_User_Query( $args2 );

              $user_query = new WP_User_Query();
              $user_query->results = array_merge( $search_query->results, $meta_query->results );

              //populate total_users count for the loop to work correctly
              $user_query->total_users = $search_query->total_users + $meta_query->total_users;
              // Remove duplicate users from array
              /* final step goes here */

然而，现在，当搜索词与他们的共同用户重叠时，查询有时会返回两次相同的结果。有没有办法筛选重复项？

Edit: 下面是我如何解决这个问题的。

              if (!empty($search_query->results)) {
                foreach ($search_query->results as $user) {
                    $user_info = $user->ID;
                    array_push($exclude, $user_info);
                }
              }

// Put the found user IDs in an array, after executing the first user query
$exclude = array();
foreach ( $search_query->results as $user ) {
 $exclude[] = $user->ID;
}