php – 递归应用array_map(array_walk_recursive？)

发布时间：2020-12-13 22:13:26 所属栏目：PHP教程来源：网络整理

导读：我有一个关联数组,我正在使用以下代码从ODBC查询创建： while ($row=odbc_fetch_array($oexec)) { if(empty($group[$row['gmm']])) { $group[$row['gmm']] = array(); } if(empty($group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_de

我有一个关联数组,我正在使用以下代码从ODBC查询创建：

while ($row=odbc_fetch_array($oexec)) {
        if(empty($group[$row['gmm']])) {
            $group[$row['gmm']] = array();
        }
        if(empty($group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']])) {
            $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']] = array();
        }
        if(empty($group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']])) {
            $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']] = array();
        }
        if(empty($group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']])) {
            $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']] = array();
        }
        if(empty($group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']])) {
            $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']] = array();
        }
        $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']]['total_ty_yest_sales'] = $row['total_ty_yest_sales'];
        $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']]['total_wo_dotcom_ty_yest_sales'] = $row['total_wo_dotcom_ty_yest_sales'];
        $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']]['east_ty_yest_sales'] = $row['east_ty_yest_sales'];
        $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']]['central_ty_yest_sales'] = $row['central_ty_yest_sales'];
        $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']]['west_ty_yest_sales'] = $row['west_ty_yest_sales'];
        $group[$row['gmm']][$row['acctg_dept_nbr'] . " - " . $row['acctg_dept_desc']][$row['dept_catg_grp_desc']][$row['dept_category_desc']][$row['dept_subcatg_desc']]['dotcom_ty_yest_sales'] = $row['dotcom_ty_yest_sales'];

    }

这给了我一个数组：

$myArray = Array(GMM => Array(acctg_dept_nbr => Array(dept_category_desc => Array(dept_subcatg_desc => Array(value1,value2,value3)))))

我想在每个级别总结值.因此,对于每个acctg_dept_nbr [dept_category_desc] [dept_subcatg_desc],我想将value1,value3求和. GMM级别和dept_subcatg_desc级别相同.总结dept_subcatg_desc级别不是问题.我挖了一下,找到了如何总结dept_category_desc级别,但是在递归应用该方法时遇到了麻烦.

以下是将值放入表中的代码：

foreach($group as $gmm => $acctg_dept_nbrs) {
        echo "<tr class="header">
        <td>" . $gmm . "</td>n";

        foreach ($acctg_dept_nbrs as $acctg_dept_nbr => $dept_catg_grp_descs) {
                        echo "<tr class="header">n
            <td style="padding-left: 1em;">" . $acctg_dept_nbr . "</td>n";

            foreach($dept_catg_grp_descs as $dept_catg_grp_desc => $dept_category_descs) {
                echo "<tr class="header">n
                <td style="padding-left: 2em;">" . $dept_catg_grp_desc . "</td>n";
                                    //echo "<td>" . array_sum(array_walk_recursive($dept_category_descs,function($item) {return $item['total_ty_yest_sales'];})) . "</td>";
                foreach($dept_category_descs as $dept_category_desc => $dept_subcatg_descs) {
                    echo "<tr class="header">n
                    <td style="padding-left: 3em;">" . $dept_category_desc . "</td>n";
                                            echo "<td>" . array_sum(array_map(function($item) {return $item['total_ty_yest_sales'];},$dept_subcatg_descs)) . "</td>";
                                            echo "<td>" . array_sum(array_map(function($item) {return $item['east_ty_yest_sales'];},$dept_subcatg_descs)) . "</td>";
                                            echo "<td>" . array_sum(array_map(function($item) {return $item['central_ty_yest_sales'];},$dept_subcatg_descs)) . "</td>";
                                            echo "<td>" . array_sum(array_map(function($item) {return $item['west_ty_yest_sales'];},$dept_subcatg_descs)) . "</td>";
                    foreach($dept_subcatg_descs as $dept_subcatg_desc => $values) {
                                                echo "<tr>n
                                                    <td style="padding-left: 4em;">" . $dept_subcatg_desc . "</td>n";
                                                $sum = $values['total_ty_yest_sales'];
                                                echo "<td>".$sum."</td>";
                                                $sum = $values['east_ty_yest_sales'];
                                                echo "<td>".$sum."</td>";
                                                $sum = $values['central_ty_yest_sales'];
                                                echo "<td>".$sum."</td>";
                                                $sum = $values['west_ty_yest_sales'];
                                                echo "<td>".$sum."</td>";
                    }
                }
            }
        }
    }

注释掉的线现在是我的问题.这个：

array_sum(array_map(function($item) {return $item['west_ty_yest_sales'];},$dept_subcatg_descs))

在那个级别工作正常,但不是在更高级别.我也尝试调整此功能无济于事：

function array_map_recursive($callback,$array) {
    foreach ($array as $key => $value) {
        if (is_array($array[$key])) {
            $array[$key] = array_map_recursive($callback,$array[$key]);
        }
        else {
            $array[$key] = call_user_func($callback,$array[$key]);
        }
    }
    return $array;
}

我怎样才能使这个工作,以便无论水平如何,它将挖掘并总结该部分数组的值？

解决方法

function array_map_recursive($callback,$array)
{
  $func = function ($item) use (&$func,&$callback) {
    return is_array($item) ? array_map($func,$item) : call_user_func($callback,$item);
  };

  return array_map($func,$array);
}

（编辑：李大同）

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