In what ways can the use of additional arrays improve the efficiency and readability of PHP code?

Using additional arrays can improve the efficiency and readability of PHP code by organizing data in a structured way, making it easier to access and manipulate. By storing related data in separate arrays, you can avoid cluttering your code with numerous variables and make it easier to understand the logic of your program.

// Example of using additional arrays to improve efficiency and readability

// Original code without additional arrays
$name1 = "Alice";
$age1 = 25;

$name2 = "Bob";
$age2 = 30;

// Improved code using additional arrays
$person1 = array(
    "name" => "Alice",
    "age" => 25
);

$person2 = array(
    "name" => "Bob",
    "age" => 30
);