Are there best practices for handling dynamic elements in PHP sorting functions?

When sorting arrays with dynamic elements in PHP, it's important to define a custom sorting function that can handle the dynamic elements appropriately. This can be achieved by using a callback function with the `usort()` function. Within the callback function, you can implement the logic to compare the dynamic elements based on your specific requirements.

// Example of sorting an array with dynamic elements using a custom sorting function
$dynamicArray = [
    ['name' => 'John', 'age' => 30],
    ['name' => 'Alice', 'age' => 25],
    ['name' => 'Bob', 'age' => 35]
];

// Custom sorting function to sort by age in descending order
usort($dynamicArray, function($a, $b) {
    return $b['age'] - $a['age'];
});

// Output the sorted array
print_r($dynamicArray);