This tag is used mostly regarding associative arrays (but better use tag "associative-array" for that) and sometimes in the mathematic sense of tag "associativity", the associative property of binary operations.
Questions tagged [associative]
435 questions
2
votes
0 answers
In which case is an array faster
I have a huge list of objects (e.g. I call them messages). Every message contains an array (e.g. I name them user) with 2, 3 or 4 strings (userids).
If I loop trough all messages I want to check in every message whence a userid is in the array or…
Biber
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2
votes
2 answers
How to use a number attached to a string in associative array
I have a card deck array:
$cards = array("2_of hearts" => 2, "3_of_hearts" => 3, "king_of_hearts" => 10);
And I want to echo the name of the card somewhere (example: 2_of_hearts) but also calculate something with the number attached to it, but I…
Jim L
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2
votes
8 answers
JS associative object with duplicate names
ok, so I have an object like:
var myobject = {
"field_1": "lorem ipsum",
"field_2": 1,
"field_2": 2,
"field_2": 6
};
as you see there are duplicate names in the object, but with different values. If i go through it like (using…
SteeleR
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- 1
- 1
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2
votes
2 answers
how combine multiple arrays into a single associate array using the arrays as keys
I have 2 arrays that i would like to loop through and combine into an associative array. I would like to use the 2 arrays as the keys for the new associative array. I am new to php so any and all help would be appreciated.
$id = array( 2, 4);
$qty…
Tamer Elhotiby
- 23
- 4
2
votes
5 answers
How to remove duplicate values from an associative array based on a specific value?
I have an array that looks just like that:
array(3) { ["fk_article_id"]=> string(1) "4" ["first_name"]=> string(6) "Ulrike" ["last_name"]=> string(10) "Grasberger" }
array(3) { ["fk_article_id"]=> string(1) "9" ["first_name"]=> string(5) "Frank"…
flhe
- 341
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2
votes
1 answer
PHP Associative Array, same code on same level doesn't work
I have a really strange problem over here. Sorry for the ugly redundant parts, but it is only for prototyping. In both blocks I calculate the seconds of the given worktime. The first block was the first version and worked, but wasn't that robust. So…
heidelbeere
- 157
- 1
- 12
2
votes
2 answers
Combine two arrays but add Values of duplicate keys together
I have two arrays, $ids and $quants (ids and quantities of stock items) that need to be combined, but instead of replacing or removing duplicates, their values should be added together.
Currently I'm using array_combine() but this means that some…
hyclrs
- 33
- 7
2
votes
1 answer
Looping through array data
I have email template data and I'm trying to get it as associative array with keys and labels. But I can't make proper array as it should be.
My template is the following:
key_1:label1,key2:label2,...
I get this text from database in this…
ivva
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2
votes
2 answers
Sorting array of array php
I'm working on a little project based on codeigniter, I'm not a php developer and this is my problem:
foreach ($checkeds['id_iscritti'] as $checked){
$iscritto = $this->pellegrinaggio_iscritti_m->get_iscritto($checked);
…
Gennaro Oliviero
- 23
- 4
2
votes
3 answers
Summarize object area with a Hash in Ruby
require 'sketchup'
entities = Sketchup.active_model.entities
summa = Hash.new
for face in entities
next unless face.kind_of? Sketchup::Face
if (face.material)
summa[face.material.display_name] += face.area
end
end
I'm trying to get the…
Arto Uusikangas
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2
votes
1 answer
Does passing objects as arguments represent an associative relationship?
What is the best way to enforce an associative relationship between these two classes?
class ExcelFile
def initialize(name)
@name = name
end
end
class Commodity
attr_accessor(
:xau
)
def initialize(name)
…
Zach Smith
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- 133
2
votes
2 answers
Using an associative array to trap list of errors?
I am writing a procedure returning an IN OUT cursor. I want to check whether the IN parameters are appreciate. In case they are not, the cursor receive a grid of errors in the same place of results which only happen with appreciate parameters. The…
gngdoan
- 21
- 4
2
votes
1 answer
Whats the precedence and associativity of f x? Haskell
I know that . and $ both have right associativity, so that
f . g . x
would be
f . (g . x)
I also know that . has precedence over most, such that
f . x + 5 * 4
would be
f . ((x + 5) * 4)
but when you have just
f g x
whats the associativity…
Arthur
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2
votes
3 answers
How do you traverse and store XML in Blackberry Java app?
I'm having a problem accessing the contents of an XML document.
My goal is this:
Take an XML source and parse it into a fair equivalent of an associative array, then store it as a persistable object.
the xml is pretty simple:
…
Greg
- 23
- 4
2
votes
1 answer
Hash::extract associated data
I have an Array that looks like:
array(
0 => array (
"Something" => array(
"id" => 1,
"foo" => "bar"
),
"User" => array( ... )
),
1 => array (
"Something" => array(
"id"…
user3615698
- 23
- 2