array-map Questions
4
Solved
I have a multidimensional array:
$template = Array (
[0] => Array ( [id] => 352 [name] => a )
[1] => Array ( [id] => 438 [name] => b )
[2] => Array ( [id] => 351 [name]...
Hurdle asked 19/6, 2017 at 10:47
6
I have an array such as ['id' => 1, 'name' => 'Fred'].
I want to call array_map on this array and also use the key inside the function. However, when I make a return, my keys will become inde...
Gipon asked 26/8, 2014 at 19:4
10
Solved
I am having problems understanding the concept of Array.map. I did go to Mozilla and Tutorials Point, but they provided very limited info regarding this.
This is how I am using Array.map. It is a l...
Earthshine asked 28/6, 2013 at 15:6
4
Solved
I want to do something like this:
class Cls {
function fun($php) {
return 'The rain in Spain.';
}
}
$ar = array(1,2,3);
$instance = new Cls();
print_r(array_map('$instance->fun', $ar));
// ^...
8
Solved
I am trying to create a class to handle arrays but I can't seem to get array_map() to work in it.
$array = [1,2,3,4,5,6,7,8,9,10];
class test {
public $values;
public function adding($data...
6
Solved
Right now, if 'Everything' in the list is detected, the output becomes [""].
Expected output: []
Copy.names = rule.names.map(function(x) {
if (x.name ==='Everything') {
return '';
} else {
r...
Lawtun asked 27/6, 2016 at 19:27
5
Solved
What's the performance difference (if there is any) between these three approaches, both used to transform an array to another array?
Using foreach
Using array_map with lambda/closure function
Us...
Breunig asked 9/8, 2013 at 10:35
2
Solved
Today I learned about a special case of array_map() in PHP, which is mentioned as a side note in the documentation:
Example #4 Creating an array of arrays
<?php
$a = array(1, 2, 3, 4, 5);
$b...
Indissoluble asked 23/7, 2015 at 16:0
4
I tested inline anonymous function with array_map here
and it worked but when I tried same with $user_meta it is not working.
$user_meta = Array ( [interest] => Array ( [0] => Array )...
4
Solved
Is there a way to break or continue an iteration of the built-in method array_map() as you would in a normal for loop?
For example:
array_map(function (String s) {
if (condition is met){
continue...
5
Solved
Sorry for the vague title, I had trouble summarizing this question in one sentence (I'm open to suggestions or edits).
I have a 2 dimensional associative array with an array of 2 numbers for...
Suffice asked 21/11, 2019 at 16:9
0
I played a bit with php's array_map function and thought about using it with named arguments, as the parameter order always irritates me. (The functions don't do something useful. Just needed somet...
4
Solved
I want to use array_map with a static method but I fail.
Here is my code :
Class Buy {
public function payAllBills() {
$bill_list = OtherClass::getBillList();
return array_map(array(self, 'pa...
18
Solved
Is there a way of doing something like this:
$test_array = array(
"first_key" => "first_value",
"second_key" => "second_value"
);
var_dump(
array_...
Chaldron asked 23/10, 2012 at 17:40
2
I get an error in my code with this logcat:
java.lang.NoClassDefFoundError: android.util.ArrayMap
at it.dd.multiplayerit.MainActivity.<init>(MainActivity.java:88)
at it.dd.multiplayerit.Swip...
Aquiline asked 4/7, 2014 at 12:27
2
Solved
How can i pass a single additional argument to array_map callback? In my example i'd like to pass $smsPattern (as a second argument, after current element in $featureNames) to the function array_ma...
2
Solved
I have a function called createCost, and inside that function, I have an array_map that takes in an array and a function called checkDescription that's inside that createCost. Below is an example:
...
4
Solved
I'm used to perl's map() function where the callback can assign both the key and the value, thus creating an associative array where the input was a flat array. I'm aware of array_fill_keys() which...
3
Solved
I have a 32-bit integer used for bitmask and an array with 32 values. How to get only those values from the array which indexes correspond to the positions of the non-zero bits in the bitmask?
Fo...
Grigg asked 17/12, 2014 at 22:0
3
Basically I have an array of objects like
var array = [{x: 10, y: 5, r: 10, ...} ]
There are more fields in the object, but to the point, this is the way I've found to seperate the fields to ar...
Skivvy asked 2/1, 2019 at 18:6
5
I have a class called Collection which stores objects of same type.
Collection implements array interfaces: Iterator, ArrayAccess, SeekableIterator, and Countable.
I'd like to pass a Collection ob...
3
Solved
When I'm testing array_map() function. There is a very strange phenomenon.
Normal size array
$array = range(1, 100000);
echo memory_get_usage();
array_map(function($value) {}, $array);
echo memor...
5
Solved
I have an array of objects and I want to update some of the content. I figured I could just map through the objects, find the match I was looking for and than update it.
data = data.map(obj => ...
Visibility asked 31/10, 2017 at 17:45
2
Solved
array_map accepts string as its first argument. Is there a way, to use arrays instead of strings, like:
.... array_map( array('trim','urlencode'), $my_array);
so I could attach multiple fu...
3
Solved
I'm using array_map to trim all my array values but I need to pass a third parameter because I need to more than just trim whitespaces so I'm passing in a third parameter. Basically I want to trim ...
Defeat asked 22/12, 2016 at 15:35
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