Php merge array

I want to change the array above into something like the following. A good way.
public function arr_uniqe ($arr,$key) 

{
    $key_arr = [];
    $color = [];
    foreach ($arr as $k => $v) {
        if(empty($color)){
            $color[] = $v["color"];
            $key_arr[$v["color"]]["id"] = $v["id"];
            $key_arr[$v["color"]]["name"] = $v["name"];
            $key_arr[$v["color"]]["cate_id"] = $v["cate_id"];
            $key_arr[$v["color"]]["color"] = $v["color"];
            $key_arr[$v["color"]]["color_imgurl"] = $v["color_imgurl"];
            $key_arr[$v["color"]]["gouzao"]["gouzao_".$v["gouzao"]] = $v["gouzao"];
            $key_arr[$v["color"]]["gouzao"]["gouzao_imgurl_".$v["gouzao"]] = $v["gouzao_imgurl"];
        }else{
            if(in_array($v["color"],$color)){
                  $key_arr[$v["color"]]["gouzao"]["gouzao_".$v["gouzao"]] = $v["gouzao"];
                  $key_arr[$v["color"]]["gouzao"]["gouzao_imgurl_".$v["gouzao"]] = $v["gouzao_imgurl"];
            }else{
                    $color[] = $v["color"];
                    $key_arr[$v["color"]]["id"] = $v["id"];
                    $key_arr[$v["color"]]["name"] = $v["name"];
                    $key_arr[$v["color"]]["cate_id"] = $v["cate_id"];
                    $key_arr[$v["color"]]["color"] = $v["color"];
                    $key_arr[$v["color"]]["color_imgurl"] = $v["color_imgurl"];
                    $key_arr[$v["color"]]["gouzao"]["gouzao_".$v["color"]] = $v["gouzao"];
                    $key_arr[$v["color"]]["gouzao"]["gouzao_imgurl_".$v["color"]] = $v["gouzao_imgurl"];
            }
        }
       
    }
    //sort($arr);
    return $key_arr;
}
Php
Dec.24,2021

if it exists, it updates the gouzao, and creates a new

if it doesn't exist. 
if (!isset($key_arr[$v['color']])) {
    $key_arr[$v['color']]= [];
    $key_arr[$v['color']]['id'] = $v['id'];
    $key_arr[$v['color']]['name'] = $v['name'];
    $key_arr[$v['color']]['cate_id'] = $v['cate_id'];
    $key_arr[$v['color']]['color'] = $v['color'];
    $key_arr[$v['color']]['color_imgurl'] = $v['color_imgurl'];
}

$key_arr[$v['color']]['gouzao']['gouzao_'.$v['gouzao']] = $v['gouzao'];
$key_arr[$v['color']]['gouzao']['gouzao_imgurl_'.$v['gouzao']] = $v['gouzao_imgurl'];

Previous: Angular5 model update, view not refreshed?

Next: Ask for advice, how to use WeChat Mini Programs wxParse?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bf11a5-31d64.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf11a5-31d64.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?