What are some common reasons for array_multisort returning false in PHP?

One common reason for `array_multisort` returning false in PHP is when the input arrays are empty or have different lengths. To solve this issue, ensure that the arrays passed to `array_multisort` are not empty and have the same number of elements. 

// Example code snippet to ensure input arrays are not empty before using array_multisort
$array1 = [3, 1, 2];
$array2 = ['c', 'a', 'b'];

if (!empty($array1) && !empty($array2) && count($array1) == count($array2)) {
    array_multisort($array1, $array2);
    // continue with further processing
} else {
    // handle the case where arrays are empty or have different lengths
}

Keywords

array_multisort PHP multidimensional arrays sorting false

Related Questions