> The braces aren't required in this case.
Yup, your right. I stand corrected.
I had forgotten that multiple $s are fine, and that I simply don't use them
because I have trouble reading them.
The joys of learning ;\
--
Plutarck
Should be working on something...
...but forgot what it was.
""Steve Werby"" <[EMAIL PROTECTED]> wrote in message
001e01c0c80e$45410400$6501a8c0@workstation7">news:001e01c0c80e$45410400$6501a8c0@workstation7...
> "Plutarck" <[EMAIL PROTECTED]> wrote:
> > Your problem has little to do with the things mentioned.
> >
> > First of all, you are refering to a variable variable incorrectly.
>
> Actually, he's not.
>
> >You must
> > use brackets, like this:
> >
> > ${$id}
>
> The braces aren't required in this case. Of the four examples below, only
> the 3rd won't return the expected results - because the first $ is
> interpreted as a literal $. Paste the code below into a webpage and see
for
> yourself.
>
> <?php
> $field = 'name';
> $name = 'Steve';
>
> echo '<br>' . $$field;
> echo '<br>' . ${$field};
> echo '<br>' . "My name is $$field.";
> echo '<br>' . "My name is ${$field}.";
> ?>
>
> I have a few possible explanations for the problem of the original poster
> (see below).
>
> > if (${$id} == "on")
> > {
> > echo 'on';
> > } else
> > {
> > echo 'off';
> > }
>
> 1. If $id is a number I believe PHP will choke b/c I don't believe numbers
> can be used as variable names.
>
> 2. Assume $id = 'age_bracket'. The control structure checks to see if
> $age_bracket == "on". To set $id in the first place for your multiple
> checkbox values, you'd have to loop through the values sent from the form.
> Jack (original poster), did you do that? If your form's method = post
then
> you would loop through $HTTP_POST_VARS and if it was get $HTTP_GET_VARS
(and
> then only loop through the checkbox variables). Or you could predefine
the
> checkbox variables using:
>
> $checkbox_fields = array( 'age_bracket', 'weight', 'gender',
'occupation' );
>
> And then loop through as follows:
>
> while( list( , $val ) = each( $checkbox_fields ) )
> {
> // may have to set as $$GLOBALS[$val] if within a function or declare $val
> as global first.
> if ( $$val == 'on' )
> {
> echo 'on';
> }
> else
> {
> echo 'off';
> }
> }
>
> --
> Steve Werby
> President, Befriend Internet Services LLC
> http://www.befriend.com/
>
>
> --
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