Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Sum values of multi-dimensional array in PHP

Posted on 2014-01-10
7
Medium Priority
?
2,218 Views
Last Modified: 2014-01-12
How would I calculate the sum of these two values inside this multi-dimensional array?

Array
(
    [Dec 01, 2013] => Array
        (
            [COM] => Array
                (
                    [C] => Array
                        (
                            [T] => 620.25
                            [U] => 24.75
                        )

                )

        )

)

Open in new window

0
Comment
Question by:DanielAttard
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 15

Expert Comment

by:gplana
ID: 39772276
if your array is on a variable called $a try this:

$sum = 0;
foreach($e1 in $a) {
   foreach($e2 in $e1){
      foreach($e3 in $e2){
         foreach($e4 in $e3){
            $sum += $e4;
         }
      }
   }
}
// here the $sum variable has the sum of the values.
0
 
LVL 15

Accepted Solution

by:
gplana earned 1200 total points
ID: 39772285
Sorry, last code is not correct. Try this:

$sum = 0;
foreach($a as $e1) {
   foreach($e1 as $e2){
      foreach($e2 as $e3){
         foreach($e3 as $e4){
            $sum += $e4;
         }
      }
   }
}
// here the $sum variable has the sum of the values. 

Open in new window


You can see the foreach statement help here: http://www.php.net/manual/en/control-structures.foreach.php

Hope it helps. Regards!
0
 
LVL 31

Assisted Solution

by:Marco Gasi
Marco Gasi earned 800 total points
ID: 39772309
echo $array['Dec 01, 2013']['COM']['C']['T'] + $array['Dec 01, 2013']['COM']['C']['U'];

Open in new window

0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 15

Expert Comment

by:gplana
ID: 39772321
The marqusG solution is easier than mine, however my solution works for any array with 4 dimensions (as the array of your example).

MarqusG solution will only work on this specific example (with these values) while my solution will work for any 4-dimension array.

Hope it helps. Regards.
0
 
LVL 31

Expert Comment

by:Marco Gasi
ID: 39772429
Yes, it's true. Depending on your specific needs, one solution is better than the other: if you know  the array structure, the array keys and the exact position of the values you need to sum, my solution is more concise and less expensive in terms of resources since it doesn't require to loop through the whole array.

But if you need a more abstract and flexible routine, then gplana's solution is the one which fits you needs.

Reading the question, I have choosen the quicker solution. :)

Cheers
0
 
LVL 111

Expert Comment

by:Ray Paseur
ID: 39772612
See also the examples on the PHP man page:
http://php.net/manual/en/function.array-sum.php
0
 

Author Closing Comment

by:DanielAttard
ID: 39775288
Thanks to everyone for the comments.  I learned from all of them.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Does your audience prefer people in photos or no people? How can you best highlight what you’re selling? What are your competitors doing, and what can you do that is different and unique from them?  Continue reading to learn how to make your images …
Ready to get certified? Check out some courses that help you prepare for third-party exams.
This tutorial demonstrates how to identify and create boundary or building outlines in Google Maps. In this example, I outline the boundaries of an enclosed skatepark within a community park.  Login to your Google Account, then  Google for "Google M…
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).
Suggested Courses

618 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question