代码之家 › 专栏 › 技术社区 › Asim

从多维数组展平数组函数-未定义

arrays php

0

Asim · 技术社区 · 7 年前

这是我的职责:

public function create_order_direct($order_data) {
    $result = MarathonUtil::flatten_array($order_data);
    foreach ($result as $data) {
        $media_id = $data['media_id'];
        $headline = $data['headline'];
        $client_contact = $data['client_contact'];
        $plan_number = $data['plan_number'];
        $insertion_date = $data['insertion_date']; //NOW();?
        $start_date = $data['insertion_start_date'];
        $end_date = $data['insertion_end_date'];
        $PO_number = $data['PO_number'];
        $price_code = $data['price_code'];
        $gross = $data['gross'];
    }
}

MarathonUtil::flatten_array

static function flatten_array($array) {
    $prefix = '';
    $result = array();
    foreach($array as $key=>$value) {
        if(is_array($value)) {
            $result = $result + self::flatten_array($value, $prefix . $key . '.');
        }
        else {
            $result[$prefix . $key] = $value;
        }
    }
    return $result;
}

所以在运行示例时 echo $media_id 上面说 undefined . 当我 return $result ,所有数据都可用,但不在foreach中?我只得到数据 $price_code 和 $gross (这些是数组中最深的,见下)

[{
    "media_id": "FACE",
    "headline": "FACEBOOK FEBRUAR 2018",
    "agreement_id": "REDP",
    "client_contact": "Asim Tariq",
    "order_id": 4710,
    "plan_number": 407,
    "insertion": {
        "insertion_date": "2018-09-25",
        "start_date": "2018-09-25",
        "end_date": "2018-10-10",
        "PO_number": 150,
        "price_row": {
            "price_code": "000",
            "gross": 10002345
        }
    }
}]

这么简单 echo $data['media_id'] 不会在foreach内部工作 print_r($result) price_code 和 gross

1 回复 | 直到 7 年前

1

Progrock 7 年前

<?php
$json=<<<JSON
[{
    "media_id": "FACE",
    "headline": "FACEBOOK FEBRUAR 2018",
    "agreement_id": "REDP",
    "client_contact": "Asim Tariq",
    "order_id": 4710,
    "plan_number": 407,
    "insertion": {
        "insertion_date": "2018-09-25",
        "start_date": "2018-09-25",
        "end_date": "2018-10-10",
        "PO_number": 150,
        "price_row": {
            "price_code": "000",
            "gross": 10002345
        }
    }
}]
JSON;

$out = [];
$data = json_decode($json, TRUE);
array_walk_recursive($data, function($v, $k) use (&$out) {
    $out[$k] = $v;
});
var_export($out);

输出:

array (
    'media_id' => 'FACE',
    'headline' => 'FACEBOOK FEBRUAR 2018',
    'agreement_id' => 'REDP',
    'client_contact' => 'Asim Tariq',
    'order_id' => 4710,
    'plan_number' => 407,
    'insertion_date' => '2018-09-25',
    'start_date' => '2018-09-25',
    'end_date' => '2018-10-10',
    'PO_number' => 150,
    'price_code' => '000',
    'gross' => 10002345,
  )