In PHP, how do I serialize arrays with PHP 8+ features?

In PHP 8+, you can serialize arrays using the built-in `serialize()` function, which converts a PHP variable into a storable representation. Additionally, the new attributes and union types in PHP 8+ allow for more robust and flexible handling of data structures.

 'John Doe',
    'age' => 30,
    'hobbies' => ['reading', 'travelling', 'coding']
];

// Serialize the array
$serializedArray = serialize($array);

// Output the serialized array
echo $serializedArray;

// Unserialize the array
$unserializedArray = unserialize($serializedArray);

// Output the unserialized array
print_r($unserializedArray);
?>