Posted by jmark on 05/17/07 02:13

On May 16, 1:17 pm, Erwin Moller
<since_humans_read_this_I_am_spammed_too_m...@spamyourself.com> wrote:
> j...@fastermail.com wrote:
> > I have seen some code like
> > $value = strval($REQUEST['value']);
>
> > I would like to know what is the use of strval here since $_REQUEST
> > values are strings?
>
> Hi,
>
> $_REQUEST values might as well contain arrays.
>
> Consider this form:
> <form action="test.php" Method="POST">
> <input type="checkbox" name="bla[]" value="1">1<br>
> <input type="checkbox" name="bla[]" value="2">2<br>
> <input type="checkbox" name="bla[]" value="3">3<br>
> </form>
>
> When receiving $_POST["bla"] it contains an array.
>
> The programmer wanted to make sure it is a string.
>
> Regards,
> Erwin Moller
>
> PS: I think you should avoid $_REQUEST. Just use $_POST and $_GET.

But as per documentation
http://us.php.net/manual/en/function.strval.php

strval can only be used on scalars
using strval on arrays has no effect.
the programmer should have used is_string if its a string

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