What are the considerations when implementing a "Save & New" function in a PHP form?

When implementing a "Save & New" function in a PHP form, you need to consider how to save the current form data, clear the form fields for new input, and handle any validation errors that may occur. One approach is to save the form data to a database, then reset the form fields for new input. Additionally, you may want to display a success message to the user after saving the data.

```php
// Check if form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Save form data to database
    // Perform validation and handle any errors

    // Clear form fields for new input
    $_POST = array();
}
```
This code snippet checks if the form is submitted, saves the form data to the database, clears the form fields for new input, and resets the `$_POST` array to empty.