修改独立配置文件

webconfig.php 配置调用
    'extra_config_list'     => ['web'],
<?php return ['WEB_NAME'=>'111','WEB_HOST'=>'http://www.baidu.com','WEB_BEIAN'=>'123456'];

   <form class="layui-form" action="{:url('sys_add','','')}" method="post">
    <input type="text" name="WEB_NAME">
    <input type="text" name="WEB_HOST">
    <input type="text" name="WEB_BEIAN">
    </form>

 public function sys_add()
    {
        $path = APP_PATH . '/admin/extra/web.php';
        $file = (include $path);
        $config = array(
            'WEB_NAME' => input('WEB_NAME')
        );
        $res = array_merge($file, $config);
        $str = '<?php return [';
        foreach ($res as $key => $value) {
            $str .= '\'' . $key . '\'' . '=>' . '\'' . $value . '\'' . ',';
        }
        $str .= ']; ';
        if (file_put_contents($path, $str)) {
            $this->success('添加成功');
        } else {
            $this->error('添加失败');
        }
    }

读取
echo config('配置参数.二级参数');
echo config('配置参数1');