--- In php-list@yahoogroups.com, James Keeline <[EMAIL PROTECTED]> wrote:
>
> --- On Sat, 10/4/08, Tedit kap <[EMAIL PROTECTED]> wrote:
>
> > I am trying to automatically display a variable, based on
> > the value of $i variable in a loop. For example, I have $q1,
> > $q2, $q3, $q4 variables and so on. So what I want is, to
> > display $q1 if $i=1, display $q2 if $i=2 and so on...How can
> > I do that? I tried creating a separate new variable to make
> > $new=$q($i) or something like that but it gives error. Or I
> > tried doing $new="$q".$i; but this time when I
> > echo $new, it only gives the value of $i.
> >
> > How can I display the correct $q variable based on the
> > value of $i?
>
> This trick is not unique to PHP but it can be helpful in cases like
this.
>
> print $q{$i};
>
> The contents of the curly braces are evaluated. Here is some
sample code:
>
> <?php
> $q1=52; $q2=22; $q3=83; $q4=2; $q5=37;
> foreach (range(1,5) as $i)
> {
> print "$q{$i}\n";
> }
> ?>
>
> When you have data like this, it is often better to store it in an
array.
>
> James
>
Thanks james, this looks good and I wrote it down. Before I got your
response, I also found another way, like this:
$new = array(0,$q1,$q2,$q3,$q4,$q5,$q6,$q7,$q8);
echo "<form method=\"post\" action=\"updateanswers.php\">";
for($i=1; $i<=$qtotal; $i++)
{
$answer="answer".$i;
echo "<input type=\"radio\" name=\"answer\" value=$answer>";
echo $new[$i];
echo "</br>";
}
