How can PHP developers ensure that template variables are correctly replaced in a script?

To ensure that template variables are correctly replaced in a script, PHP developers can use a templating engine like Twig or Smarty. These templating engines provide a syntax for defining variables within templates and automatically replacing them with the corresponding values. By using a templating engine, developers can separate the presentation logic from the business logic, making the code more maintainable and easier to read. 

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

$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader);

$template = $twig->load('index.html');
echo $template->render(['variable_name' => 'Hello, World!']);

Keywords

PHP template variables script replacement validation

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