Re: Variable name as a variable?
| From: | Lars Torben Wilson | Date: | Mon, 05 Oct 2009 15:30:34 +0000 |
| Subject: | Re: Variable name as a variable? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-298602@lists.php.net to get a copy of this message | ||
On Mon, 5 Oct 2009 16:56:48 +0200
Dotan Cohen <dotancohen@gmail.com> wrote:
> I need to store a variable name as a variable. Note quite a C-style
> pointer, but a way to access one variable who's name is stored in
> another variable.
>
> As part of a spam-control measure, a certain public-facing form will
> have dummy rotating text fields and a hidden field that will describe
> which text field should be considered, like this:
>
> input type="text" name="text_1"
> input type="text" name="text_2"
> input type="text" name="text_3"
> input type="hidden" name="real_field" value="text_2"
>
> As this will be a very general-purpose tool, a switch statement on the
> hidden field's value would not be appropriate here. Naturally, the
> situation will be much more complex and this is a non-obfuscated
> generalization of the HTML side of things which should describe the
> problem that I need to solve on the server side.
>
> Thanks in advance for any ideas.
>
Some reading on this if you're interested:
http://us2.php.net/manual/en/language.variables.variable.php
You can also access array properties using variables if you like:
$foo->some_prop = 'Hi there!';
$bar = 'some_prop';
echo $foo->$bar;
Regards,
Torben