What are some alternative approaches to generating nested lists in PHP besides using array_walk_recursive()?

When generating nested lists in PHP, an alternative approach to using array_walk_recursive() is to use recursive functions. By creating a function that calls itself for each nested level of the array, you can easily generate the desired nested list structure without relying on array_walk_recursive(). 

function generateNestedList($array) {
    echo '<ul>';
    foreach ($array as $key => $value) {
        echo '<li>' . $key;
        if (is_array($value)) {
            generateNestedList($value);
        } else {
            echo ': ' . $value;
        }
        echo '</li>';
    }
    echo '</ul>';
}

$array = [
    'fruit' => [
        'apple' => 'red',
        'banana' => 'yellow'
    ],
    'vegetable' => 'carrot'
];

generateNestedList($array);

Keywords

nested lists PHP array_walk_recursive() alternative approaches arrays

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