What are the potential pitfalls of using multiple nested loops in PHP code?

Using multiple nested loops in PHP code can lead to decreased performance and increased complexity. It can make the code harder to read and maintain, especially as the number of nested loops increases. To solve this issue, consider refactoring the code to use alternative methods such as array functions or breaking down the logic into smaller, more manageable functions. 

// Example of refactoring nested loops using array functions

$data = [1, 2, 3, 4, 5];
$result = [];

// Using array_map to iterate over the data array
$result = array_map(function($item) {
    return $item * 2;
}, $data);

print_r($result);

Keywords

nested loops PHP code performance complexity optimization

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