Re: 0.0.0.0 & iplong()
| From: | Matijn Woudt | Date: | Mon, 04 Jun 2012 17:33:53 +0000 |
| Subject: | Re: 0.0.0.0 & iplong() | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-318148@lists.php.net to get a copy of this message | ||
On Mon, Jun 4, 2012 at 6:54 PM, jas <jason.gerfen@gmail.com> wrote:
> Not sure if this is a bug or not...
>
> I have run into an error when performing a conditional using iplong() and
> the ~ bitwise operator
>
> $ip = '0.0.0.0';
> $mask = '24';
>
> $end = (ip2long($ip) || (~ip2long($mask))) + 1;
>
> PHP Fatal error: Unsupported operand types
>
> I even tried to typecast the mask to (int)
>
The error is probably not where you suspect it to be. ip2long will
return false for ip2long($mask), because $mask is not a valid IP
address. The ~ operator is not supported for false.
- Matijn