How can PHP developers effectively manage and organize their code to handle complex data structures like arrays?

Managing and organizing code for complex data structures like arrays in PHP can be achieved by using appropriate data structures and functions. Utilizing associative arrays, multidimensional arrays, and built-in array functions can help developers effectively handle and manipulate complex data structures. Additionally, creating reusable functions and classes to encapsulate array operations can improve code organization and maintainability.

// Example of using associative arrays and array functions to manage complex data structures

// Define an associative array representing a person
$person = [
    'name' => 'John Doe',
    'age' => 30,
    'email' => 'john.doe@example.com'
];

// Add a new key-value pair to the person array
$person['address'] = '123 Main St';

// Display the person's information
echo "Name: " . $person['name'] . "<br>";
echo "Age: " . $person['age'] . "<br>";
echo "Email: " . $person['email'] . "<br>";
echo "Address: " . $person['address'] . "<br>";

// Example of using array functions to manipulate arrays

// Define a numeric array
$numbers = [1, 2, 3, 4, 5];

// Use array_map to square each number in the array
$squaredNumbers = array_map(function($num) {
    return $num * $num;
}, $numbers);

// Display the squared numbers
echo "Squared Numbers: " . implode(', ', $squaredNumbers);