yii2权限控制rbac之rule详细讲解，yii2权限控制rbac_PHP教程

<?<span>php
namespace backend\components;


</span><span>use</span><span> Yii;
</span><span>use</span><span> yii\rbac\Rule;


</span><span>class</span> ArticleRule <span>extends</span><span> Rule
{
    </span><span>public</span> <span>$name</span> = 'article'<span>;
    </span><span>public</span> <span>function</span> execute(<span>$user</span>, <span>$item</span>, <span>$params</span><span>)
    {
        </span><span>//</span><span> 这里先设置为false,逻辑上后面再完善</span>
        <span>return</span> <span>false</span><span>;
    }
}</span>

<span>class</span> ArticleRule <span>extends</span><span> Rule
{
    </span><span>public</span> <span>$name</span> = 'article'<span>;


    </span><span>/*</span><span>*
     * @param string|integer $user 当前登录用户的uid
     * @param Item $item 所属规则rule，也就是我们后面要进行的新增规则
     * @param array $params 当前请求携带的参数. 
     * @return true或false.true用户可访问 false用户不可访问
     </span><span>*/</span>
    <span>public</span> <span>function</span> execute(<span>$user</span>, <span>$item</span>, <span>$params</span><span>)
    {
        </span><span>$id</span> = <span>isset</span>(<span>$params</span>['id']) ? <span>$params</span>['id'] : <span>null</span><span>;
        </span><span>if</span> (!<span>$id</span><span>) {
            </span><span>return</span> <span>false</span><span>;
        }

        </span><span>$model</span> = Article::findOne(<span>$id</span><span>);
        </span><span>if</span> (!<span>$model</span><span>) {
            </span><span>return</span> <span>false</span><span>;
        }

        </span><span>$username</span> = Yii::<span>$app</span>->user->identity-><span>username;
        </span><span>$role</span> = Yii::<span>$app</span>->user->identity-><span>role;
        </span><span>if</span> (<span>$role</span> == User::ROLE_ADMIN || <span>$username</span> == <span>$model</span>-><span>operate) {
            </span><span>return</span> <span>true</span><span>;
        }
        </span><span>return</span> <span>false</span><span>;
    }
}</span>