Re: Str to Int
| From: | comex | Date: | Fri, 20 Jan 2006 23:28:44 +0000 |
| Subject: | Re: Str to Int | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-228993@lists.php.net to get a copy of this message | ||
> 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 ==.
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().