thinkphp5.1 || 数组重组，分类

通过二维数组的某个字段进行分类，并重新组合：

<?php

namespace app\api\controller;

class Arraycz extends Base{
    
    

    public function test(){
    
    
        $data = [
            [
                "goods_cart_id" => 3299,
                "goods_number" => 2,
                "is_selected" =>  0,
                "wares_id" => 598,
                "wares_name" => "番茄",
                "desc_name" => "综合抗病性强，高产",
                "new_price" => "220.00",
                "stock" => 1973,
                "brand_id" => 2,
                "brand_name" => "植物大公司",
            ]
    
        ];
        dump($data);

        $res = $this->array_congzhu($data,'brand_id',['brand_id','brand_name']);
        dump($res);
    }

    // 数组重组
    //$array_data 二维数组
    // $arr 要作为 根据 分类的数组id
    // $arr_array要作为 根据 分类的数组
    private function array_congzhu($array_data,$arr,$arr_array){
    
    

        $data = array();
        foreach($array_data as $k => $v){
    
    
            
            $data[$v[$arr]][] = $v;
        }

        foreach($data as $k1 => $v1){
    
    
            $res_data = [
                'data' => $v1  //获取每组数据
            ];

            foreach($arr_array as $k2 => $v2){
    
    
                $new_array = [
                    $v2 => $v1[0][$v2]  //拼接根据该 字段分类的 数组
                ];

                $res_data = array_merge($new_array,$res_data); //数组合并
            }
        }

        return $res_data;

    }
}