What potential issues can arise when using asort on an array in PHP, as seen in the provided code snippet?

When using `asort` on an array in PHP, one potential issue that can arise is that the keys of the array will be reordered based on the values, which may not be the desired outcome. To maintain the original key-value associations while sorting by values, you can use `uasort` instead, which allows you to define a custom comparison function. 

// Fix: Use uasort to maintain original key-value associations while sorting by values

$array = array("b" => 4, "a" => 2, "c" => 1);

// Custom comparison function to sort by values
function customSort($a, $b) {
    if ($a == $b) {
        return 0;
    }
    return ($a < $b) ? -1 : 1;
}

uasort($array, 'customSort');

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

Keywords

asort array PHP sorting keys

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