In PHP, how do I serialize arrays with strong typing?

In PHP, you can use built-in functions like serialize() and json_encode() for serializing arrays. When working with PHP 7.4 and later, you can enforce strong types in function parameters and return types.

Here's a simple example:


        <?php
        declare(strict_types=1);
        
        function serializeArray(array $data): string {
            return json_encode($data);
        }
        
        $array = [1, 2, 3, 'test' => 'example'];
        $serialized = serializeArray($array);
        
        echo $serialized;
        ?>