ID: 23964
User updated by: prof_moriarty at veryfast dot biz
Reported By: prof_moriarty at veryfast dot biz
Status: Open
Bug Type: Feature/Change Request
Operating System: Win98 se
PHP Version: 4.3.2
New Comment:
You see, if someone with a php.net e-mail addy get's it wrong, what
hope do us 'mere-mortals' have?!?!?! hehe
;)
Previous Comments:
------------------------------------------------------------------------
[2003-06-02 17:47:10] [EMAIL PROTECTED]
Ah, touche... good catch...
------------------------------------------------------------------------
[2003-06-02 17:43:31] prof_moriarty at veryfast dot biz
sorry, i can't code in C/++, so can't do it myself. :)
however that code can't work (i just tested it to make sure).
You missed a layer of the looping.
It should be:
$total = 0;
foreach($array_to_manipulate as $boxes => $box_arrays){
foreach($box_arrays as $key=> $value){
if ($key == 'height') {
$total += $value;
}
}
}
That should work.....
As you can see, with sizeable arrays, it could go around quite a few
times... Which (from a performance front) would be better if it was
done in c(++).... Hint Hint... ;)
------------------------------------------------------------------------
[2003-06-02 17:07:14] [EMAIL PROTECTED]
Perhaps someone else will be motivated enough to implement this (feel
free to write it yourself and submit a patch to
[EMAIL PROTECTED]) but here's some userspace code which
accomplishes what you want.
$total = 0;
foreach($array_to_manipulate as $key => $value)
if ($key == 'height')
$total += $value;
Which I'm sure you can see is easy enough to wrap in a function.
------------------------------------------------------------------------
[2003-06-02 15:55:40] prof_moriarty at veryfast dot biz
This is tricky to explain, but easy to understand.
At present there's a function: array_sum that adds up all the values in
an array.
I would like to suggest somthing similar, and at the same time
intrinsically different.
The ability to sum up an elements value in a multi-dimensional array.
Example multi-dim-array:
array (
'box1' =>
array (
'height' => 5,
'length' => 10,
'width' => 3.5,
),
'box2' =>
array (
'height' => 17,
'length' => 9,
'width' => 8,
),
)
The above array contains two boxes and a few dimensions...
What do i do if i want to work out the combined height of the boxes (to
see if they can fit into a space)? I could write a little function to
do it sure.
But i figure quite a few other people could use this little function
too, so i'll suggest it to you.
some clarification, using the above example array.
the syntax for the function could be:
mixed proposed_function(array input, string element_name)
An example of it in use:
$result = proposed_function($array_to_manipulate, 'height');
echo $result;
The result would be:
22 //becase 5 + 17 = 22 :)
I hope thats clear...
Keep up the good work folks... :)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=23964&edit=1
