In what situations is it more practical to use the GET method for passing data in PHP forms, and when is it better to use POST?

The GET method should be used when passing small amounts of data that are not sensitive, such as search queries or filters, as the data is visible in the URL. On the other hand, the POST method should be used when passing sensitive information like passwords or personal details, as the data is not visible in the URL and is sent in the request body.

<form method="get" action="process.php">
    <label for="search">Search:</label>
    <input type="text" id="search" name="search">
    <button type="submit">Submit</button>
</form>
```

```php
<form method="post" action="process.php">
    <label for="username">Username:</label>
    <input type="text" id="username" name="username">
    <label for="password">Password:</label>
    <input type="password" id="password" name="password">
    <button type="submit">Submit</button>
</form>