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

In PHP 8 and later, deep copying of arrays can be achieved using the spread operator or the `array_map` function. This allows developers to create a new copy of an array, including all nested arrays, ensuring that modifications to the new array do not affect the original.

PHP 8, deep copy arrays, spread operator, PHP array map, PHP features, programming tips

Discover how to effectively deep copy arrays in PHP 8 using modern features like the spread operator or array functions.


        <?php
        // Original array
        $original = [
            'name' => 'John',
            'details' => [
                'age' => 30,
                'city' => 'New York'
            ]
        ];

        // Deep copy using spread operator
        $deepCopy1 = [
            ...$original,
            'details' => [
                ...$original['details']
            ]
        ];

        // Deep copy using array_map
        $deepCopy2 = array_map(function($item) {
            return is_array($item) ? array_map(fn($subItem) => $subItem, $item) : $item;
        }, $original);

        // Modifying the deep copied array
        $deepCopy1['details']['city'] = 'Los Angeles';
        $deepCopy2['details']['age'] = 31;

        // Output for demonstration
        var_dump($original);
        var_dump($deepCopy1);
        var_dump($deepCopy2);
        ?>

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

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

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