如何将一个方法的结果存储在一个变量中，然后我可以在PHP的类外部使用它？

Question

The structure in page-bulletins.php:

$args = array(
    'post_type' => 'post',
    'posts_per_page' => 3,
    'paged' => $paged
);

 $query = new WP_Query($args); if( $query->have_posts() ) :
     while( $query->have_posts() ) : $query->the_post();
         <!-- some code -->
     endwhile;
     // call the function 'posts_per_page' in the class 'cn_pages' using the value defined with the 'posts_per_page' key in '$args' above
     cn_pages::posts_per_page($args['posts_per_page']);
     // then call this function
     pass_page_info();
 endif;

The code in functions.php:

class cn_pages {
    function posts_per_page($postsperpage) {
        return $postsperpage;
    }
}

I have another function defined outside of the class cn_pages that needs the result of the posts_per_page method in order to calculate how many total pages there are.

How can I store the result of this method into a variable that I can access outside of the class where the method is defined?

Answer 1

What you can do is the following:

$cnpages = new cn_pages();
$cnpages->posts_per_page($args['posts_per_page']);

And this should return you the value of the function.