Steve!!!
This is great!
I had no idea you could use arrays in url variables. That makes everything much easier.
Thanks very much
Tim
At 06:26 AM 28/05/2004, Steve Edberg wrote:
At 2:01 AM -0300 5/28/04, [EMAIL PROTECTED] wrote:From there I want to take those data points and do several thingsThanks for the reply Denis,
Let me elaborate a bit.
I have a php page which I want to pass a series of variables via a url string.
eg
myPage.php?dataPoint1=10&dataPoint2=20&dataPoint3=30
The thing is I won;t know until runtime how many dataPoints there will be so I have also included 1 additional url variable
eg
myPage.php?totalDataPoints=3&dataPoint1=10&dataPoint2=20&dataPoint3=30with each of them. The keep things simple lets say I want to multiply each by 3 and then divide it by 2 and put it into a new variable (under the same naming system).
eg
$xtemp=$HTTP_GET_VARS[totalDataPoints];
do {
A line here which will take each dataPoint and multiply by 3 and divide by 2 and assign it to a new variable with the same numbering system (eg $myNewVar1=$HTTP_GET_VARS[dataPoint1]*3/2;
$xtemp--;
} while ($xtemp>0);
Make any more sense?
Thanks.
Strictly speaking, your original question referred to what PHP calls 'variable variables':
http://us3.php.net/manual/en/language.variables.variable.php
However, most of what you can do with them can be done more simply with arrays. In your example above, use
myPage.php?dataPoint[]=10&dataPoint[]=20&dataPoint[]=30
and you get an array
$dataPoint[0]=10 $dataPoint[1]=20 $dataPoint[2]=30
The number of data points is count($dataPoint). See
http://us3.php.net/manual/en/language.variables.external.php
for more info on this technique.
steve edberg
At 01:24 AM 28/05/2004, Dennis Seavers <[EMAIL PROTECTED]> wrote:Maybe others will catch on to your intention, but I think you need to provide a bit more information. For example, what variables do you want to create (drawn from a file source, or create on the fly)? Where will they come from (a database, perhaps)? You could create a script that creates variables from scratch, following a (hopefully) finite mathematical formula. Or you could manipulate data that already exists, turning this data into some kind of variables.
Ultimately, you'll have to give a better of sense of the end result you'd like.
Dennis Seavers
> Subject: [PHP] Newbie Question: Variables on the fly[Original Message] From: <[EMAIL PROTECTED]> To: PHP List <[EMAIL PROTECTED]> Date: 05/27/2004 9:17:11 PMwith
Hello,
I'm sure this is a newbie question but I don't know the syntax.
I want to create a series of variables within a php script at runtime> Tima for loop.
eg
myVar1 myVar2 myVar3 etc....
What is the proper syntax to do this?
Thanks,
-- +--------------- my people are the people of the dessert, ---------------+ | Steve Edberg [EMAIL PROTECTED] | | University of California, Davis (530)754-9127 | | Programming/Database/SysAdmin http://pgfsun.ucdavis.edu/ | +---------------- said t e lawrence, picking up his fork ----------------+
-- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php