How can the usort() function in PHP be utilized to sort ranks in a custom order?

When sorting ranks in a custom order using the usort() function in PHP, you can define a custom comparison function that specifies the desired order of ranks. This comparison function should return -1, 0, or 1 based on the custom order. By using this custom comparison function with usort(), you can sort the ranks in the specified order. 

$ranks = ['Diamond', 'Gold', 'Silver', 'Bronze', 'Platinum'];

usort($ranks, function($a, $b) {
    $customOrder = ['Gold', 'Silver', 'Bronze', 'Platinum', 'Diamond'];
    return array_search($a, $customOrder) - array_search($b, $customOrder);
});

print_r($ranks);

Keywords

usort PHP custom order ranks sorting

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