public function setConfigv(){

        $path = './application/extra/api.php';

        $file = (include $path);

        $config = array(

            'paytype' => 3

        );

        $res = array_merge($file, $config);

        $str = '<?php'.PHP_EOL .' return ['.PHP_EOL;

        foreach ($res as $key => $value) {

            $str .= ' \'' . $key . '\'' . '=>' . '\'' . $value . '\'' . ','.PHP_EOL;

        }

        $str .= ']; ';

        if (file_put_contents($path, $str)) {

            $this->success('添加成功');

        } else {

            $this->error('添加失败');

        }

    }

public function setConfigm($path,$data){

      
                $file=include $path;
                $res = array_merge($file, $data);

                $str = '<?php '.PHP_EOL. 'return [ '.PHP_EOL;
                foreach ($res as $key => $value){
                    // '\'' 单引号转义
                    //$str .= '\''.$key.'\''.'=>'.'\''.$value.'\''.',';
                    if (is_array($value)){
                        $str.= '    \''.$key.'\''.'=>['.PHP_EOL;
                        foreach ($value as $k=>$v){
                            $str.='        \''.$k.'\''.'=>'.'\''.$v.'\''.','.PHP_EOL;
                        }
                        $str.='    ],'.PHP_EOL;
                    }else{
                        $str.='\''.$key.'\''.'=>'.'\''.$value.'\''.','.PHP_EOL;
                    }
                };
                $str .= ']; '.PHP_EOL;
                $upfile =file_put_contents($path, $str);//写入文件
    }