PHP调用两个函数，但保存第一个变量？

Question

i am trying to set a title with the function below and then call another function so i can render the view but after I cannot see the title. here is my code:

snippet from another file:

$indexPage = new View();
$indexPage->setPageTitle('This is the title');
$indexPage->render('index');

This is my view class:

class View {

    private $title;

    public function render($file) {
        require '/view/header.php';
        require '/view/'.$file.'.php';
        require '/view/footer.php';
    }

    public function setPageTitle($title) {
        $this->title = $title;
    }

}

then I would access it on my page:

index.php:

<?php echo $this->title ?>

but it does not show.

Answer 1

Yes it will not show. If you created View object in index.php as mentioned in code snipet then you call <?php echo $indexPage->title ?> Otherwise when you rendered view template you have to pass data like most MVC does.

Note: make title variable public if you want to access it directly otherwise write another public function and return the private member.