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.php我需要在我的文件中按季度分组。以粗体显示需要修复的代码，即 switch case 4。刚才我对年、月、周和日进行了正确分组，但现在我需要季度名称 case 4。我尝试了此代码GROUP FUNCTION，但它显示了我2010 年和 2011 年有 5 组，这是错误的。

switch ($level) 
{

  case '4':**
    $group = "FLOOR(EXTRACT(YEAR_MONTH FROM FROM_UNIXTIME(invoice_date))/3)";</b>
    break;
}

固定是

SQL 部分


案例“4”：
                    $group = "EXTRACT(YEAR FROM_UNIXTIME(invoice_date)) as group_field2, EXTRACT(QUARTER FROM_UNIXTIME(invoice_date))";
                    休息;

    $sql_select = $db->query("SELECT sum(amount) AS invoice_amount, " . $group ." AS group_field FROM
                " . DB_PREFIX . "invoices WHERE invoice_date>= " . $startup . " " . $user_query . " GROUP BY group_field, group_field2 ORDER BY group_field2 DESC, group_field DESC");


文本 - 链接部分

                    案例“4”：
                        $start = strtotime('+' . (($view_details_received['group_field'] - 1) * 3) . 'month', strtotime($view_details_received['group_field2'] . '/1/1'));
                        $finish = strtotime('+' . (($view_details_received['group_field'] - 1) * 3 + 3) . 'month', strtotime($view_details_received['group_field2'] . '/1/1'));
                        $start = getdate($start);
                        $finish = getdate($finish - 86400);
                        $title = 'Q' 。$view_details_received['group_field2'] 。'，' 。$view_details_received['group_field'];
                        休息;
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1 回答 1

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您可以在 SQL 中使用 EXTRACT(QUARTER FROM date)，然后执行常规 GROUP BY

请参阅 MySQL 网页上的EXTRACT 文档和可能的参数表。

于 2012-10-30T11:52:02.343 回答