> -----Original Message-----
> From: Stephen [mailto:[EMAIL PROTECTED]]
> Sent: 11 December 2002 02:50
>
> I want to repeat the following code as many times as the user
> specifies in the variable $_POST['x']. I then need to have
> the output display as all the numbers found in the sequence.
> How would I do this?
>
> Code:
>
> $number = 1;
> $output = $num3;
> do {
> $output = $output * $r . ", ";
Well, the first time you do this you no longer have a number but a string,
so you're already in trouble....
> $number++;
> } while($number < $_POST['x']);
>
> What this is supposed to do is find the next X numbers in a
> sequence with the common ratio (r) being the multiplier.
> After that, it puts it in a list, and tells the user the next
> X numbers in the sequence...
Why don't you just echo each number as you calculate it? Whilst we're about
it, let's use a for loop instead of that cumbersome do while!
for ($output = $num3, $number = 1; $number < $_POST['x']; $number++):
$output *= $r;
echo "$output, ";
endfor;
If you need to build the string for other purposes, you will need to build
it up in a separate variable:
for ($list='', $output=$num3, $number=1; $number < $_POST['x'];
$number++):
$output *= $r;
$list .= ($list?', ':'') . $output;
endfor;
echo $list;
Cheers!
Mike
---------------------------------------------------------------------
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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