Re: form validation code
| From: | Shreyas Agasthya | Date: | Wed, 30 Jun 2010 13:53:20 +0000 |
| Subject: | Re: form validation code | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-306565@lists.php.net to get a copy of this message | ||
http://www.php.net/manual/en/types.comparisons.php
<http://www.php.net/manual/en/types.comparisons.php>The
first table actually
gives a very good understanding.
--Shreyas
On Wed, Jun 30, 2010 at 7:05 PM, Richard Quadling <rquadling@gmail.com>wrote:
> On 30 June 2010 14:23, Daniel P. Brown <daniel.brown@parasane.net> wrote:
> > (Hint: isset != empty)
>
> More importantly ...
>
> isset != !empty
>
> $a = Null;
> $b = '';
> // $c = undefined;
> $d = 'Hello';
>
> isset($a) = False vs True = empty($a)
> isset($b) = True vs True = empty($b)
> isset($c) = False vs True = empty($c)
> isset($d) = True vs False = empty($d)
>
>
>
> --
> -----
> Richard Quadling
> "Standing on the shoulders of some very clever giants!"
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--
Regards,
Shreyas Agasthya