递归应用array_map（array_walk_recursive？）

时间：2014-03-05 17:00:11

标签： php arrays recursion

我有一个关联数组，我使用以下代码从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，value2，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>";
                    }
                }
            }
        }
    }

注释掉的行现在对我来说是个问题。这样：

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

在该级别上工作正常，但不是在更高级别。我也尝试调整这个功能无济于事：

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;
}

如何使这项工作成为可能，无论级别如何，它都会挖掘并总结该部分数组的值？

3 个答案:

答案 0 :(得分：20)

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);
}

答案 1 :(得分：0)

如果我们向函数添加多个数组，可能会有些困难。但是只有一个，根本没有问题。

      function array_map_recursive(&$arr, $fn) {
            return array_map(function($item) use($fn){
                return is_array($item) ? array_map_recursive($item, $fn) : $fn($item);
            }, $arr);
        }

      $array = array_map_recursive($array, function($item){
            //TODO logic here
      });

答案 2 :(得分：-1)

filter_var本质上可以用来完成此任务

from connect_to_db import get_df
import plotly.express as px
import os

df = get_df()

fig = px.bar(df, x='Date', y='Total', color='CUSTOMER_TYPE',
             color_discrete_sequence=["#E15759","#8CD17D"],  width=800, height=400)

fig.update_layout({'plot_bgcolor': 'rgba(0, 0, 0, 0)', 'paper_bgcolor': 'rgba(0, 0, 0, 0)', })

fig.update_layout(
    legend=dict(
        orientation="h",
        yanchor="bottom",
        y=1.02,
        xanchor="right",
        x=.4))
fig.update_layout({
    'legend_title_text': ''
},
    xaxis_title="",
    yaxis_title="Tested Count"

)
fig.update_xaxes(showline=True, linewidth=1, linecolor='#FBFBFB', mirror=False)
fig.update_yaxes(showgrid=True, gridwidth=1, gridcolor="#FBFBFB",showline=True, linewidth=2, linecolor='#FBFBFB', mirror=False)
fig.show()

有一个很大的缺点... 回调将以字符串形式接收该值。 而且叶子不能是物体

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