php数组循环添加键值对

二维数组添加方法：循环$listening_collect是一个二维数组，往里面添加一个you_answer元素

$listening_collect = $this->ser_toefllistening->zt_collect($listening_articleid)->result_array();
        foreach ($listening_collect as $key => $value){
            //变量值$answer是个数组 answer是里面的一个元素
            $answer = $this->ser_toefllistening->answer($value[\'id\'],$u_id);
            $listening_collect[$key][\'you_answer\'] = $answer[\'answer\'];
        }

打印$listening_collect数组

 

 

 添加之后打印$listening_collect数组

 

 一维数组添加方法：

//这个是一维数组添加
foreach($arr as $key => &$vo){
        $vo[\'name\'] = \'星星\';
        $vo[\'age\'] = \'24\';
    }
    $arr[$key][\'name\'] = \'星星\';
    $arr[$key][\'age\'] = \'24\';

转载：https://blog.csdn.net/qq_35960620/article/details/83587343

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$res = Db::name(\'ht_let_go\')
            ->where("title", "like", "%$name%")
            ->order(\'id desc\')
            ->paginate($size,false,[\'page\'=> $page,\'query\'=>request()->param()])->toArray();


        foreach ($res[\'data\'] as $k => $v){
            $res[\'data\'][$k][\'sum_num\']  = Db::name(\'ht_let_go_buy\')->where(\'let_go_id\',$v[\'id\'])->count();
        }
dump($res);die;