How can naming conventions for form elements impact PHP functionality?

Naming conventions for form elements can impact PHP functionality if the names do not follow the expected format. This can lead to errors when trying to access form data using $_POST or $_GET arrays in PHP. To ensure smooth functionality, it is important to use consistent and meaningful names for form elements that adhere to PHP variable naming conventions. 

<form action="process_form.php" method="post">
  <input type="text" name="username">
  <input type="password" name="password">
  <button type="submit">Submit</button>
</form>
```

In the PHP script (process_form.php) that processes the form data, you can access the values using the $_POST array like this:

```php
$username = $_POST['username'];
$password = $_POST['password'];

Keywords

naming conventions form elements PHP functionality impact error types

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