In what scenarios would it be more beneficial to use uasort instead of usort when sorting arrays of dates in PHP?

When sorting arrays of dates in PHP, it would be more beneficial to use `uasort` instead of `usort` when you need to maintain the key-value associations in the array. `uasort` allows you to define a custom comparison function that considers both the values and keys of the array elements when sorting, whereas `usort` only considers the values. 

// Example of using uasort to sort an array of dates while maintaining key-value associations
$dates = [
    'date1' => '2022-01-15',
    'date2' => '2022-01-10',
    'date3' => '2022-01-20'
];

uasort($dates, function($a, $b) {
    return strtotime($a) - strtotime($b);
});

print_r($dates);

Keywords

uasort usort sorting arrays dates PHP

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