Re: Str to Int
| From: | Paykiosks) | Date: | Sat, 21 Jan 2006 00:02:43 +0000 |
| Subject: | Re: Str to Int | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-228995@lists.php.net to get a copy of this message | ||
Am Freitag, den 20.01.2006, 18:28 -0500 schrieb comex:
> > if ($cardID=''||is_int($cardID))
>
> Two problems with that statement:
> First of all, this statement _sets_ cardID to '', and then (I think)
> returns a false value since '' doesn't evaluate to true. You probably
> wanted ==.
hOOOOOOOOOOOOOOps that's right, shit, haven't seen that......hm okay, it
works fine now, thanks again!
> Second of all, now that $cardID is '', it certainly isn't an int. It
> isn't an int, and it wouldn't be an int if you fixed that statement
> because is_int only tests if it is, actually, an integer.
> $HTTP_GET_VARS['cardID'] could be '123', but it can't be 123 and so
> that will be false. From the PHP manual:
>
> Note: To test if a variable is a number or a numeric string (such
> as form input, which is always a string), you must use is_numeric().
>