How can using an array for the input values in PHP improve code readability and maintenance?

Using an array for input values in PHP can improve code readability and maintenance by organizing related data in a structured way. This approach makes it easier to understand the purpose of the input values and their relationships, leading to more readable code. Additionally, if changes need to be made to the input values, they can be easily updated in a single location within the array, reducing the chances of errors and simplifying maintenance.

// Using an array for input values
$inputValues = [
    'username' => 'JohnDoe',
    'email' => 'johndoe@example.com',
    'age' => 30,
    'city' => 'New York'
];

// Accessing input values from the array
$username = $inputValues['username'];
$email = $inputValues['email'];
$age = $inputValues['age'];
$city = $inputValues['city'];

// Example usage of input values
echo "Username: $username, Email: $email, Age: $age, City: $city";