Are there any common pitfalls to avoid when trying to separate design and code in PHP?

One common pitfall to avoid when trying to separate design and code in PHP is mixing HTML markup with PHP logic in the same file. To solve this, it is recommended to use a template engine like Twig to separate the presentation layer from the business logic. 

// Example using Twig template engine
require_once 'vendor/autoload.php';

$loader = new Twig_Loader_Filesystem('templates');
$twig = new Twig_Environment($loader);

$template = $twig->load('index.html');

$data = [
    'title' => 'Hello, World!',
    'content' => 'This is a sample content.'
];

echo $template->render($data);

Keywords

MVC separation of concerns template engines dependency injection code readability

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