算法(多维数组获取所有key,value值(不包含数字key) ,还能让数组内项 的值替换(后一项的值替换前一项)(算法))

<?php
class   data_change{

    private $data = [];
    
    private $rolue = ["L","getkey","getvalue","",""];

    private $rolue_v = ''; 

    private $key = [];

    private $value = [];

    private $first_line = false;

    private $p_key = 'id';

    public $res_data = [];


    public function __construct($data, $rolue = 0 ,  $p_key = 'id',  $first_line = false){
        if (!$data)
            return false;
        $this->data = $data;
        $this ->p_key = $p_key;
        $this->rolue_v = $this->rolue[$rolue];
        $this->first_line = $first_line;
        $this ->run(); 

    }

    private function run(){

        if($this->rolue_v == "L"){
            $this->getkeys($this->data);
            if(in_array($this->p_key ,$this->key)){
                $this->data = $this->sort_array2($this->data,$this->p_key);
            }
            // 可以是id 值段 也可以是 bool true false 等字符串 (true 去重)
            $this->getvalues($this->data,$this->p_key);
            // 获取到主键的编号 随后添加一项
            $max_id = max($this->value);
            $new_arr = [$this->p_key=>$max_id+1];
            array_push($this->data,$new_arr);
            array_push($this->value,$max_id+1);

            $this->L_change();
        }else if($this->rolue_v == "getkey"){
            $this->getkeys($this->data);
            $this->res_data =  $this->key;

        }else if($this->rolue_v == "getvalue"){
            $this->getvalues($this->data,$this->p_key);
            $this->res_data = $this->value;
        }


    }

    private function L_change(){

        $length = count($this->value);
        foreach($this->data as $kd => $vd){
            if(0 < $kd && $kd <= $length -1){
                if($kd == $length -1){
                    $this->data[$kd] =$this->data[$kd-1];
                }
                //保持最后一个值不变
                $this->data[$kd][$this->p_key] = $this->value[$kd-1];
            }
        }
        // 得到结果是 0 1 位置 id是一样的 如果 保持首相不变那么去除 [1] 如果首相需需要变化那么去除 [0]
        // 最后一个值空也就是说在创建钱先创建一个空的数组放在最底下那么 第一个初始化时添加即可
        // 第一项 是否保留
        if($this->first_line == false){
            unset($this->data[0]);
            $this->data = array_values($this->data);
        }else{
            unset($this->data[1]);
            $this->data = array_values($this->data);
        }
        $this ->res_data = $this->data;
    }
    // 获取键值
    public function getkeys($arr){
        if(!$arr){
            return false;
        }
        $new_key = [];
        $this->key = $this ->foreach_dg($arr , $new_key , 'k');
        
    }
    // 获取value
    public function getvalues($arr,$str){
        if(!$arr){
            return false;
        }
        $new_value = [];
        // 是否去重 :v_true :v_false ,获取对应字段的全部value
        $str = 'v_'.$str;
        $this->value = $this ->foreach_dg($arr , $new_value , $str);
    }

    private function foreach_dg($arr , &$res_arr, $type){
        foreach ($arr as $k => $va){
            if($type == 'k'){
                if(strlen($k) !== strlen(intval($k))){
                    if(!in_array($k,$res_arr)){
                        array_push($res_arr , $k);
                    }
                }else{
                    if(is_array($va)){
                        $this->foreach_dg($va , $res_arr ,$type);
                    }
                    continue;
                }
            }else{
                if(is_array($va)){
                    $this->foreach_dg($va , $res_arr ,$type);
                }else{
                    if($type == 'v_true'){
                        if(!in_array($va,$res_arr)){
                            array_push($res_arr , $va);
                        }
                    }else if($type == 'v_false'){
                        array_push($res_arr , $va);
                    }else{
                        $need_key = explode("_",$type)[1];
                        if($need_key == $k){
                            array_push($res_arr , $va);
                        }
                        continue;
                    }
                }

            }

        }
        return $res_arr;
    }
    // 二维数组根据某个key 排序
    function sort_array2($arr,$key,$orderby= SORT_ASC){
        // SORT_DESC SORT_ASC
        array_multisort(array_column($arr,$key),$orderby,$arr);
        return $arr;

    }

}
$arr = [
    array(
        "id" => '12',
        "yttt" => 'hello',
        'lkyy' => 'pppl'
    ),
    array(
        "id" => '13',
        "yttt" => 'hello2',
        'lkyy' => 'pppl1'
    ),
    array(
        "id" => '15',
        "yttt" => 'hello3',
        'lkyy' => 'pppl2'
    ),
    array(
        "id" => '17',
        "yttt" => 'hello33',
        'lkyy' => 'pppl21'
    ),
    array(
        "id" => '25',
        "yttt" => 'hello31',
        'lkyy' => 'pppl22'
    ),
    array(
        "id" => '29',
        "yttt" => 'hello13',
        'lkyy' => 'pppl12'
    )
];

$a = new data_change($arr,2,'yttt');
var_dump($a->res_data);die;