在前端按自定义字段( user_meta )搜索用户-php问题

Search user by custom fields ( user_meta ) in the front end(在前端按自定义字段( user_meta )搜索用户)

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问题描述

我使用 WP_User_Query 在前端显示大量用户.


I have a large amount of users which I'm displaying on the front end with WP_User_Query. 
我在这个前端用户数据库上有一个搜索功能，并且需要能够通过自定义字段进行搜索，每个配置文件都有多个.
I have a search function on this front end user database, and need to be able to search by custom fields, which each profile has a number of. 
目前搜索引擎将搜索标准 wp 用户字段，例如user_firstname"、user_lastname"，但不会搜索我的自定义字段(本例中为机构"和设备")，而我不知道为什么.
Currently the search engine will search for standard wp user fields such as 'user_firstname', 'user_lastname', but won't search my custom fields ('institution' & 'equipment' in this example), and I'm not sure why.
查询:
 $search = ( isset($_GET['search-meta']) ) ? sanitize_text_field($_GET['search-meta']) : false ;

 if ($search){

    $my_users = new WP_User_Query( 

      array( 
        'role' => 'Subscriber', 
        'search' => '*' . $search . '*',
        'fields'     => 'all',    
        'meta_query' => array(
            'relation' => 'OR',
                array(
                    'key'     => 'institution',
                    'value'   => '*' . $search . '*',
                    'compare' => 'LIKE'
                ),
                array(
                    'key'     => 'equipment',
                    'value'   => '*' . $search . '*',
                    'compare' => 'LIKE'
                )
            )

      ));

  } 

搜索表单:
<form method="get" id="db-search" action="<?php the_permalink() ?>">

    <input type="text" class="field" name="search-meta" id="s" placeholder="Search Database" />

    <button type="submit"><i class="fa fa-search"></i></button>

</form>


推荐答案
您的代码中有两个错误.
Two errors you have in your code. 
@cabrerahector 在评论中提到:您应该从 meta_query value 中删除所有 *.
您正尝试在此处使用 搜索:
'role' => 'Subscriber', 
'search' => '*' . $search . '*',

但问题是 search 键总是会尝试从 $searchWP_User_Query#Search_Parameters" rel="nofollow noreferrer">您的 wp_users 表的电子邮件地址、URL、ID、用户名或 display_name 与关系 AND.这意味着，如果您的 $search 与上述列之一不匹配，那么您的查询将不会返回任何内容.

But the problem is that search key will always try to find your $search from email address, URL, ID, username or display_name of your wp_users table with relation AND. This mean, that if your $search will not match with one of the mentioned columns, then your query will return nothing.

这是从 meta_values 用户中搜索的工作代码:

Here is working code to search from meta_values of users:

$search = ( isset($_GET['search-meta']) ) ? sanitize_text_field($_GET['search-meta']) : false ;

if ($search){

    $my_users = new WP_User_Query(

        array(
            'role' => 'Subscriber',
            'fields'     => 'all',
            'meta_query' => array(
                'relation' => 'OR',
                array(
                    'key'     => 'institution',
                    'value'   => $search,
                    'compare' => 'LIKE'
                ),
                array(
                    'key'     => 'equipment',
                    'value'   => $search,
                    'compare' => 'LIKE'
                )
            )

        ));

}

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