# Re: [PHP] Feelin' dumb...

```That means \$num_pages is equal to 2 so yes the if statement is true and it
goes onto the the for loop.  Now where you are having problems is on the
second expression in the for loop.. This expression is basically saying "Do
this for loop while \$I is less than or equal to 2.  The third expression
tells the for loop what to do after each iteration which means after the
first iteration \$I is now 21 so it will stop the for loop since it does not
pass the second expression check in the for loop.. Since \$I is not less than
or equal to 2 since \$I is equal to 21 now.```
```
Im not sure where the 20 comes in so if you clarify what it is for then
maybe we can figure out where it needs to go :)  If you just want the loop
to go through twice then you would set it to:

if (\$num_pages >= 2) {
for (\$i=1; \$i<=\$num_pages; \$i++) {
echo "\$I<br />";
}
}

Rick

"May the BEST of your past be the WORST of your future" - Unknown

> From: "Jason Soza" <[EMAIL PROTECTED]>
> Date: Fri, 17 May 2002 20:23:53 -0800
> To: <[EMAIL PROTECTED]>
> Subject: RE: [PHP] Feelin' dumb...
>
> When I use that, here:
>
> if (\$num_pages >= 2) {
>    for (\$i=1; \$i<=\$num_pages; \$i+=20) {
> echo "\$i";
> }
> }
>
> I get 1, or whatever I set \$i= in the first expression. No other iterations.
> When I use Craig's way, it works - kinda. Based on what I'm using this code
> in, I should get two iterations. I'm counting the number of rows from my DB,
> dividing it by 20, that's the number of pages I have - currently I have 22
> records, so 2 pages. Here's what I use for that:
>
>    \$sql = mysql_query("SELECT * FROM table");
>    \$num_rows = mysql_num_rows(\$sql);
>    \$num_pages = ceil(\$num_rows/20);
>
> So why would I only get 1 iteration? 22/20 = 1.2 rounded up to 2. This
> satisfies the if (\$num_pages >= 2) statement and initiates the loop. \$i
> starts as 1, then should loop once more. If I set \$i=0, I echo 0. What
> gives?
>
> I may not be able to answer anymore tonight, have to DJ for 4 hours
> beginning in about 35 minutes, so I need to get ready for that, but
> certainly anymore ideas would be great. Thanks!
>
> -----Original Message-----
> From: Tom Rogers [mailto:[EMAIL PROTECTED]]
> Sent: Friday, May 17, 2002 7:40 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [PHP] Feelin' dumb...
>
>
> Hi
> What you need is
> for (\$i=1; \$i<=\$num_pages; \$i+=20) {
>  // print stuff here
> }
>
> Tom
>
> At 01:19 PM 18/05/2002, Jason Soza wrote:
>> Okay, I'm apologizing right now for this, but I hope it's at least
>> tolerable. I have this:
>>
>> for (\$i=1; \$i<=\$num_pages; \$i++) {
>>         // print stuff here
>>         }
>>
>> For each loop, I want to add 20 to \$i, so after the first iteration, I have
>> 21, then 41, 61, etc. I've tried \$i+20, \$i + 20, I've tried looking in the
>> manual, but I assume this is some C-type function, and I'm not familiar
> with
>> C!
>>
>> Any helpers?
>>
>> Jason Soza
>>
>>
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```