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Re: [PHP] Str to Int

Posted by "Ron Eggler (Paykiosks)" on 01/21/06 02:02

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 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().



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