$n = ip2long( $ip );
if ( $n < 0 ) {
$n += pow( 2, 32 );
+ # On 32-bit platforms (and on Windows), 2^32 does not fit into an int,
+ # so $n becomes a float. We convert it to string instead.
+ if ( is_float ( $n ) ) {
+ $n = (string) $n;
+ }
}
}
return $n;