What role do template engines like Twig or Smarty play in managing meta-tags in PHP development?

Template engines like Twig or Smarty play a crucial role in managing meta-tags in PHP development by allowing developers to separate the presentation layer from the logic layer. This separation enables easier management and customization of meta-tags within templates without having to mix HTML and PHP code directly. 

// Using Twig to manage meta-tags in PHP development

// Initialize Twig
$loader = new \Twig\Loader\FilesystemLoader('/path/to/templates');
$twig = new \Twig\Environment($loader);

// Define meta-tags data
$metaTags = [
    'title' => 'Page Title',
    'description' => 'Page Description',
    'keywords' => 'keyword1, keyword2, keyword3',
];

// Render template with meta-tags
echo $twig->render('page_template.twig', ['metaTags' => $metaTags]);

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