Sort multi-dimensional, non-associative array on 2nd field

[sen5241b]

I need to sort a multi-dimensional, non-associative array on the 2nd field. I read the data in from a simple CSV file. The first value is string and the second is a number. If there is no easy way to do this with a simple function, then is there a way to convert a non-associative array to an associative array so that I can sort an associative array using the function below?

// from php.net
function sortArrayByField( $original, $field, $descending = false )
        {
            $sortArr = array();
           
            foreach ( $original as $key => $value )
            {
                $sortArr[ $key ] = $value[ $field ];
            }
   
            if ( $descending )
            {
                arsort( $sortArr );
            }
            else
            {
                asort( $sortArr );
            }
           
            $resultArr = array();
            foreach ( $sortArr as $key => $value )
            {
                $resultArr[ $key ] = $original[ $key ];
            }
       
            return $resultArr;
        }

 

[sen5241b]

Its probably easier to use an associative array and this where cat is the second field:

usort($WordsArray, "cmp");
exit();

function cmp($a, $b)
{
    return strcmp($a["cat"], $b["cat"]);
}