如何在此处添加按日期排序？

Question

这是一个特定等级的代码，问题是当一个人被添加到与过去相同的点数时，他是第一名。 例如：我得了5分，拿了第一名，在我之后你得了同样的5分，你就得了第一名。我需要保留收货时间。我先得到它意味着我的位置是第一。

function game_plugin_function()
{

global $wpdb;

$table_group = $wpdb->prefix . "bp_groups"; // group
$table_members = $wpdb->prefix . "bp_groups_members"; // group members
$table_matauser = $wpdb->prefix . "usermeta"; // user meta

$groups_array = array();

$sql_groups = $wpdb->get_results("SELECT * FROM $table_group");
foreach($sql_groups as $sql_groups_new)
{
    $a_group_id = $sql_groups_new->id;
    $a_group_name = $sql_groups_new->name;

    $sql_members = $wpdb->get_results("SELECT * FROM $table_members where group_id = '$a_group_id'");
    foreach($sql_members as $sql_members_new)
    {
        $a_member_id = $sql_members_new->user_id;

        $sql_pointer = $wpdb->get_results("SELECT meta_value FROM $table_matauser where user_id = '$a_member_id' AND meta_key = '_gamipress_star_points' ");
        foreach($sql_pointer as $sql_pointer_new)
        {
            $a_groups_points = $sql_pointer_new->meta_value;
            $groups_array[$a_group_name] += $a_groups_points;
        }
    }
}
array_filter($groups_array);
arsort($groups_array);
$icount_rank = 0;
?>
<table>
    <tr>
        <th>
            Rank
        </th>
        <th>
            Group    
        </th>
        <th>
            Points
        </th>
    </tr>
    <?php
    foreach($groups_array as $groups_array_title => $groups_array_points)
    {
        $icount_rank++;
        echo '<tr>';
            echo '<td>';
                echo $icount_rank;
            echo '</td>';
            echo '<td>';
                echo $groups_array_title;
            echo '</td>';
            echo '<td>';
                echo $groups_array_points;
            echo '</td>';
        echo '</tr>';
    }
    ?>
</table>
<?php  
}
?>

我想在这里添加类似的内容：

$sql_date = $wpbd->get_results("SELECT $date FROM $table_date where user_id = '$a_member_id' AND trigger_type = 'gamipress_earn_points'");

要添加类似按日期过滤的内容，如何实现？ 希望你能理解我

Answer 1

$sql_date = $wpbd->get_results("SELECT * FROM table_date where user_id = '$a_member_id' AND trigger_type = 'gamipress_earn_points' ORDER BY datetime_field DESC ");

Answer 2

我认为最简单的方法是将order by 添加到您的查询中。 示例：SELECT * FROM table ORDER BY points DESC, date DESC 或 SELECT * FROM table ORDER BY points DESC, id DESC 如果您有自动增量 ID，它也应该可以工作。