如何在PHP中获取对象的受保护属性值 [英] How to get protected property value of object in PHP

问题描述

我有一个具有受保护属性的对象，我想获取 dateTime.

I have a object with protected property that I want to get dateTime.

1)modelData->start->dateTime //2017-05-10T17:00:00+05:30
2)modelData->end->dateTime //2017-05-10T17:20:00+05:30

物体看起来像

Google_Service_Calendar_Event Object
(
    [collection_key:protected] => recurrence   
    [attachmentsType:protected] => Google_Service_Calendar_EventAttachment   
    [created] => 2017-05-08T07:05:43.000Z
    [creatorType:protected] => Google_Service_Calendar_EventCreator
    [creatorDataType:protected] => 
    [description] => 
    [endType:protected] => Google_Service_Calendar_EventDateTime
    [endDataType:protected] => 
    [endTimeUnspecified] => 
    [etag] => "2988454353000000"
    [extendedPropertiesType:protected] => Google_Service_Calendar_EventExtendedProperties
    [extendedPropertiesDataType:protected] => 
    [gadgetType:protected] => Google_Service_Calendar_EventGadget   
    [visibility] => 
    [internal_gapi_mappings:protected] => Array
        (
        )

    [modelData:protected] => Array
        (
            [creator] => Array
                (
                    [email] => [e-mail]
                    [self] => 1
                )

            [organizer] => Array
                (
                    [email] => [e-mail]
                    [self] => 1
                )

            [start] => Array
                (
                    [dateTime] => 2017-05-10T17:00:00+05:30
                    [timeZone] => Asia/Calcutta
                )

            [end] => Array
                (
                    [dateTime] => 2017-05-10T17:20:00+05:30
                    [timeZone] => Asia/Calcutta
                )

            [reminders] => Array
                (
                    [useDefault] => 1
                )

        )

)

PHP 脚本:

我可以在不生产的情况下获得 etag 值

I can get etag value without producted

echo "-----".$result->getEtag(); //"2988454353000000" 

我无法获得产品的开始和结束值

I cannot get start and end value with producted

echo "-----".$result = $event->getData(); //Error undefined method

我的推荐人:

获取受保护对象内的字符串

如何在 PHP 中获取对象的受保护属性

请指教！

推荐答案

可见性

声明为protected的成员只能在类内访问本身和通过继承类.

Members declared protected can be accessed only within the class itself and by inheriting classes.

如果您需要从外部访问该属性，请选择一个:•不要将其声明为受保护的，而是将其公开• 编写几个函数来获取和设置值(getter 和 setter)

If you need to access the property from outside, pick one: •Don't declare it as protected, make it public instead •Write a couple of functions to get and set the value (getters and setters)

如果不想修改原来的类(因为它是一个第三方库，你不想弄乱)创建一个自定义类扩展原来的:

If you don't want to modify the original class (because it's a third-party library you don't want to mess) create a custom class that extends the original one:

class My_Google_Service_Calender_Event extends Google_Service_Calendar_Event {
}

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