关于zend_acl,该如何解决

关于zend_acl
用zend_acl ，把$acl最后生成的放到一个文件里，现在我把它反序列取出来，成为一个数组。但是我要取出单独一个角色和资源来判断非常麻烦，不知道大牛们是怎么做的，愿听指教。

PHP code

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Zend_Acl Object
(
    [_roleRegistry:protected] =&gt; Zend_Acl_Role_Registry Object
        (
            [_roles:protected] =&gt; Array
                (
                    [guest] =&gt; Array
                        (
                            [instance] =&gt; Zend_Acl_Role Object
                                (
                                    [_roleId:protected] =&gt; guest
                                )

                            [parents] =&gt; Array
                                (
                                )

                            [children] =&gt; Array
                                (
                                    [member] =&gt; Zend_Acl_Role Object
                                        (
                                            [_roleId:protected] =&gt; member
                                        )

                                )

                        )

                    [member] =&gt; Array
                        (
                            [instance] =&gt; Zend_Acl_Role Object
                                (
                                    [_roleId:protected] =&gt; member
                                )

                            [parents] =&gt; Array
                                (
                                    [guest] =&gt; Zend_Acl_Role Object
                                        (
                                            [_roleId:protected] =&gt; guest
                                        )

                                )

                            [children] =&gt; Array
                                (
                                )

                        )

                    [admin] =&gt; Array
                        (
                            [instance] =&gt; Zend_Acl_Role Object
                                (
                                    [_roleId:protected] =&gt; admin
                                )

                            [parents] =&gt; Array
                                (
                                )

                            [children] =&gt; Array
                                (
                                )

                        )

                )

        )

    [_resources:protected] =&gt; Array
        (
            [entertain] =&gt; Array
                (
                    [instance] =&gt; Zend_Acl_Resource Object
                        (
                            [_resourceId:protected] =&gt; entertain
                        )

                    [parent] =&gt; 
                    [children] =&gt; Array
                        (
                        )

                )

            [sports] =&gt; Array
                (
                    [instance] =&gt; Zend_Acl_Resource Object
                        (
                            [_resourceId:protected] =&gt; sports
                        )

                    [parent] =&gt; 
                    [children] =&gt; Array
                        (
                        )

                )

            [news] =&gt; Array
                (
                    [instance] =&gt; Zend_Acl_Resource Object
                        (
                            [_resourceId:protected] =&gt; news
                        )

                    [parent] =&gt; 
                    [children] =&gt; Array
                        (
                        )

                )

        )

    [_isAllowedRole:protected] =&gt; 
    [_isAllowedResource:protected] =&gt; 
    [_isAllowedPrivilege:protected] =&gt; 
    [_rules:protected] =&gt; Array
        (
            [allResources] =&gt; Array
                (
                    [allRoles] =&gt; Array
                        (
                            [allPrivileges] =&gt; Array
                                (
                                    [type] =&gt; TYPE_DENY
                                    [assert] =&gt; 
                                )

                            [byPrivilegeId] =&gt; Array
                                (
                                )

                        )

                    [byRoleId] =&gt; Array
                        (
                        )

                )

            [byResourceId] =&gt; Array
                (
                    [entertain] =&gt; Array
                        (
                            [byRoleId] =&gt; Array
                                (
                                    [guest] =&gt; Array
                                        (
                                            [byPrivilegeId] =&gt; Array
                                                (
                                                    [watch] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                )

                                            [allPrivileges] =&gt; Array
                                                (
                                                    [type] =&gt; 
                                                    [assert] =&gt; 
                                                )

                                        )

                                    [member] =&gt; Array
                                        (
                                            [byPrivilegeId] =&gt; Array
                                                (
                                                    [watch] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                    [edit] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                    [add] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                )

                                            [allPrivileges] =&gt; Array
                                                (
                                                    [type] =&gt; 
                                                    [assert] =&gt; 
                                                )

                                        )

                                    [admin] =&gt; Array
                                        (
                                            [byPrivilegeId] =&gt; Array
                                                (
                                                    [watch] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                    [edit] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                    [add] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                    [delete] =&gt; Array
                                                        (
                                                            [type] =&gt; TYPE_ALLOW
                                                            [assert] =&gt; 
                                                        )

                                                )

                                            [allPrivileges] =&gt; Array
                                                (
                                                    [type] =&gt; 
                                                    [assert] =&gt; 
                                                )

                                        )

                                )

                        )………………
)

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