What best practices should PHP developers follow when sorting multidimensional arrays to ensure optimal performance and maintainability?

When sorting multidimensional arrays in PHP, developers should use the `usort` function with a custom comparison function to ensure optimal performance and maintainability. By defining a custom comparison function, developers can specify the sorting logic based on the specific requirements of the multidimensional array. This approach allows for flexibility and control over the sorting process, resulting in efficient and maintainable code. 

// Sample multidimensional array
$users = [
    ['name' => 'John', 'age' => 30],
    ['name' => 'Alice', 'age' => 25],
    ['name' => 'Bob', 'age' => 35]
];

// Custom comparison function for sorting by age
usort($users, function($a, $b) {
    return $a['age'] - $b['age'];
});

// Output sorted array
print_r($users);

Keywords

multidimensional arrays sorting performance maintainability PHP developers

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