What are the advantages and disadvantages of using PHP snippets directly in content versus creating separate modules in PHP?

When deciding whether to use PHP snippets directly in content or create separate modules, it's important to consider the advantages and disadvantages of each approach. Using PHP snippets directly in content can make it easier to customize specific elements of a page, but it can also make the code harder to maintain and reuse. On the other hand, creating separate modules in PHP can help improve code organization and reusability, but it may require more effort upfront.

// Example of using PHP snippet directly in content
<div>
    <?php echo "Hello, World!"; ?>
</div>
```

```php
// Example of creating a separate module in PHP
// module.php
<?php
function greet() {
    return "Hello, World!";
}
?>

// content.php
<div>
    <?php echo greet(); ?>
</div>