PHP从类外部将函数var从false设置为true

问题描述

类中有一个烦人的函数，它添加了广告，我希望将它们从类外删除。该函数如下所示：

There is an annoying function inside a class which adds advertisements and I want them removed from outside the class. The function looks like this:

class Ads_Form {
    public function admin_footer( $submit = true, $show_sidebar = true ) {
        if ( $show_sidebar ) {
            $this->admin_sidebar();
        }
    }
}

您可以看到有变量 $ show_sidebar ，默认情况下设置为 true 。

As you can see there is a variable called $show_sidebar which is set to true by default.

如何从班级外部将此变量设置为 false ？

How can I set this var to false from outside the class?

推荐答案

调用此方法时，如果不提供任何参数，则默认为false：

When you call this method, if you provide no arguments, it will default to false:

$obj = new Ads_Form();
$obj->admin_footer();
// $show_sidebar gets set to true

只需传递参数，它将覆盖默认值：

Just pass it arguments, which will override the defaults:

$obj = new Ads_Form();
$obj->admin_footer(true, false);
// $show_sidebar gets set to false

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