How can PHP scripts be structured to separate HTML output from PHP actions, ensuring a cleaner and more secure codebase?

To separate HTML output from PHP actions, you can use a templating system like Smarty or create your own template files with placeholders for dynamic content. This separation helps to maintain a clean codebase by keeping the presentation logic separate from the business logic. It also enhances security by reducing the risk of code injection attacks. 

<?php
// Separate PHP actions from HTML output using a template file
$data = ['name' => 'John Doe', 'age' => 30];
$template = 'template.php';

// Perform PHP actions
$greeting = 'Hello, ' . $data['name'] . '!';

// Include the template file for HTML output
include($template);
?>
```

template.php:
```html
<!DOCTYPE html>
<html>
<head>
    <title>PHP Template Example</title>
</head>
<body>
    <h1><?php echo $greeting; ?></h1>
    <p><?php echo 'Age: ' . $data['age']; ?></p>
</body>
</html>

Keywords

Separation of concerns MVC pattern PHP templating XSS prevention code refactoring

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