What best practices should be followed when sorting arrays in PHP based on specific columns?

When sorting arrays in PHP based on specific columns, it is important to use the `usort()` function along with a custom comparison function. This function should compare the values of the specified columns for each element in the array. By using this approach, you can easily sort the array based on the desired column values. 

// Sample array to be sorted
$users = [
    ['name' => 'Alice', 'age' => 30],
    ['name' => 'Bob', 'age' => 25],
    ['name' => 'Charlie', 'age' => 35]
];

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

// Output sorted array
print_r($users);

Keywords

usort array_multisort array_column sorting algorithms comparison function

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