PHP combine several arrays to one - php

Question

I want to combine several arrays into one, they are the result of a form post with an unknown number of elements, eg:
$ids = [53,54,55];
$names = ['fire','water','earth'];
$temps = [500,10,5];
What i want is to make a function that takes these arrays as an input and produces a single output, like
$elements = [['id'=>53,'name'=>'fire','temp'=>500] , ['id'=>54,'name'=>'water','temp'=>500] , ['id'=>55,'name'=>'earth','temp'=>500]]
I came up with the following solution:
function atg($array) {
$result = array();
for ($i=0;$i<count(reset($array));$i++) {
$newAr = array();
foreach($array as $index => $val) {
$newAr[$index] = $array[$index][$i];
}
$result[]=$newAr;
}
return $result;
}
It can be called like
$elements = atg(['id' => $ids, 'name' => $names, 'temp' => $temps]);
And it produces the right output. To me it seems a bit overly complicated though, and I'm sure this is a common problem in PHP for form posts, combining seperate fields into a single array per item. What would be a better solution?

Answer 1

You can loop through all of your 3 arrays at once with array_map(). There you can just return the new array with a value of each of the 3 arrays, e.g.
$result = array_map(function($id, $name, $temp){
return ["id" => $id, "name" => $name, "temp" => $temp];
}, $ids, $names, $temps);

Answer 2

Use below code:-
$ids = [53,54,55];
$names = ['fire','water','earth'];
$temps = [500,10,5];
$result = [];
foreach($ids as $k=>$id){
$result[$k]['id'] = $id;
$result[$k]['name'] =$names[$k];
$result[$k]['temp'] = $temps[0];
}
echo '<pre>'; print_r($result);
output:-
Array
(
[0] => Array
(
[id] => 53
[name] => fire
[temp] => 500
)
[1] => Array
(
[id] => 54
[name] => water
[temp] => 500
)
[2] => Array
(
[id] => 55
[name] => earth
[temp] => 500
)
)

Answer 3

If you are ok with a destructive solution, array_shift could do the trick :
$elements = array();
while (!empty($ids)) {
$elements[] = array(
'id' => array_shift($ids),
'name' => array_shift($names),
'temp' => array_shift($temps),
);
}
If you want to make a function, using the same arguments than your example, a solution could be
function atg($array) {
$elements = array();
while (!empty($array[0])) {
$new_element = array();
foreach ($array as $key_name => $array_to_shift) {
$new_element[$key_name] = array_shit($array_to_shift);
}
$elements[] = $new_element;
}
return $elements;
}

Answer 4

$result[$ids]['name'] = $names[0];
$result[$ids]['temp'] = $temps[0]