Re: Looping Addition

Continuing this even more...how would I use this same method only to subtract? What I'm doing right now would result in the following sitution. The user types in 5 as their first number. The second number is 4. Instead of returnin 1, it returns -9. It's subtracting the first number from 0, then taking 4 and subtracting that from -5. How can I fix this keeping in mind the user may type in more then two numbers? ----- Original Message ----- From: "Chris Wesley" <cwwesley@udlug.org> To: "PHP List" <php-general@lists.php.net> Cc: "Stephen" <webmaster@melchior.us> Sent: Wednesday, December 04, 2002 8:42 PM Subject: Re: [PHP] Looping Addition > On Wed, 4 Dec 2002, Stephen wrote: > > This is only a snippet, there is more to it but for simplicities sake... > > Then I calculate it. My question is, how would I loop the adding? I hope you > > understand this now... > > Ah!, I think I understand better now. You want to add num1, num2, num3, > ... numN, which are inputs from the second form in your sequence. Gotcha. > > If you name /all/ the form elements as "nums[]" instead of individually as > "num${current}", the numbers put into the form will all be accessible in > one array to the PHP script that does the adding. Then you can just loop > over the array of numbers. > > In your second form, change this: > "<input name="num<?php echo $current; ?>" type="text" > id="vars" value="0" > size="25">" > > To this: > "<input name="nums[]" type="text" id="vars" > value="0" size="25"> > > Then in the script that adds the numbers: > $total = 0; > foreach( $_POST['nums'] as $number ){ > $total += $number; > } > > Hopefully I understood your problem this time! Let me know if I missed > again. > g.luck, > ~Chris > >