Question

So I’m refactoring my code to implement more OOP. I set up a class to hold page attributes.

class PageAtrributes  {   private $db_connection;   private $page_title;      public function __construct($db_connection)      {         $this->db_connection = $db_connection;         $this->page_title = '';     }      public function get_page_title()     {         return $this->page_title;     }      public function set_page_title($page_title)     {         $this->page_title = $page_title;     } } 

Later on I call the set_page_title() function like so

function page_properties($objPortal) {         $objPage->set_page_title($myrow['title']); } 

When I do I receive the error message:

Call to a member function set_page_title() on a non-object

So what am I missing?

Answer 1

It means that $objPage is not an instance of an object. Can we see the code you used to initialize the variable?

As you expect a specific object type, you can also make use of PHPs type-hinting feature^Docs to get the error when your logic is violated:

function page_properties(PageAtrributes $objPortal) {         ...     $objPage->set_page_title($myrow['title']); } 

This function will only accept PageAtrributes for the first parameter.