What are some potential pitfalls of not separating layout and program logic in PHP scripts?

Not separating layout and program logic in PHP scripts can lead to messy and hard-to-maintain code. It can also make it difficult to make changes to the layout without affecting the logic, and vice versa. To solve this issue, it's recommended to use a template engine like Twig or Blade to separate the presentation layer from the business logic. 

// Using Twig template engine to separate layout and program logic

// Include the Twig autoloader
require_once 'vendor/autoload.php';

// Specify the location of the Twig templates
$loader = new Twig_Loader_Filesystem('templates');

// Initialize the Twig environment
$twig = new Twig_Environment($loader);

// Render the template with separate layout and program logic
echo $twig->render('index.twig', ['variable' => $value]);

Keywords

PHP layout program logic separation of concerns maintainability

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