How can PHP developers ensure that their code for extracting elements from an array is clean and maintainable?

To ensure that PHP code for extracting elements from an array is clean and maintainable, developers can use built-in array functions like array_map, array_filter, or array_reduce to perform operations on array elements. By using these functions, developers can write concise and readable code that is easier to maintain and understand. 

// Example of using array_map to extract elements from an array
$numbers = [1, 2, 3, 4, 5];

// Extracting even numbers from the array
$evenNumbers = array_map(function($num) {
    return $num % 2 == 0 ? $num : null;
}, $numbers);

print_r($evenNumbers);

Keywords

PHP array extraction clean code maintainability

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