public static function columnReverseSort($a, $b)
    {
        return 1 - strcasecmp(strlen($a) . $a, strlen($b) . $b);
    }
public static function columnReverseSort($a, $b)
    {
        return 1 - strcasecmp(strlen($a) . $a, strlen($b) . $b);
    }
public static function columnReverseSort ( $ a , $ b ) { return 1 - strcasecmp ( strlen ( $ a ) . $ a , strlen ( $ b ) . $ b ) ; }
Compare two column addresses
Intended for use as a Callback function for reverse sorting column addresses by column

@param   string   $a  First column to test (e.g. 'AA')
@param   string   $b  Second column to test (e.g. 'Z')
@return  integer
Compare two column addresses Intended for use as a Callback function for reverse sorting column addresses by column