RenderView Method for a Custom MVC Framework
The renderView method will receive a view file
and substitute variable values into it.
This is done in a clever way.
As you know, the variables used
in the view file are contained in the data
property of the Page class object.
These variables are an associative
array. We need to convert this array
into real variables, and then include
the view file via include.
In this case, the variables available in this
file will receive their values and
the output will be pure HTML code
with the variable values already substituted.
To convert the array into variables,
we use the special function extract:
<?php
private function renderView(Page $page) {
$viewPath = $_SERVER['DOCUMENT_ROOT'] . "/project/views/{$page->view}.php";
if (file_exists($viewPath)) {
ob_start();
$data = $page->data;
extract($data); // convert array to variables
include $viewPath; // include the view file
return ob_get_clean();
}
}
?>
