$line_3 works... but $line_$x doesn't

[Anon]

Hey There,

This is what I have;

$x=1;
while ($x<$size_num) {
if ($size$x) {
$sizes .= "$size$x,";
}
$x++;
}

However if $size_3 = "Medium" then I can use $size_3 and get medium... but if I let $x=3 and use $size$x it gives me "3"... why can't I get $size$x giving me "Medium"?

-dr

[Anon]

Try this:

$first_4="Howdy!";
$a="first";
$b=4;
$c=$a."_".$b;
print $$c; Note the double $$

Unfortunately, you've got to add a few steps to what you want to do. For instance, this:

$x=3;
$size_3="medium";
print $$size_$x;

won't work quite right, but if we add a line, it will:

$x=3;
$size_3="medium";
$tmp="size_".$x;
print $$tmp;

What you're trying to do is handled by something called variable variables. But you may do better with arrays, which are faster.

[Anon]

You're right... I've been working on it and found that arrays will handle the job much neater then the above.

Thanks for you help!

-dr