What best practices should be followed when integrating PHP with frameworks like Bootstrap for web development projects?

When integrating PHP with frameworks like Bootstrap for web development projects, it is important to follow best practices to ensure a smooth and efficient integration. One key practice is to separate the PHP logic from the HTML markup by using templates or a templating engine. This helps maintain clean and organized code. Additionally, it is recommended to use Bootstrap's classes and components effectively to ensure a responsive and visually appealing design.

<?php
// Example of separating PHP logic from HTML markup using templates
$data = ['name' => 'John Doe', 'age' => 30];
$template = '<div class="container">
                <h1>Hello, <?php echo $data["name"]; ?>!</h1>
                <p>You are <?php echo $data["age"]; ?> years old.</p>
            </div>';
echo $template;
?>