How to insert array to array PHP - php

Question

I have arrays, I don't know how to fix
I already try array_push, array_combine, array_merge, but still nothing.
$distance = array(3) {
[0]=>
float(2.2)
[1]=>
float(1.1)
[2]=>
float(3.9)
}
$getID = array(3) {
[0]=>
string(1) "B"
[1]=>
string(1) "C"
[2]=>
string(1) "F"
}
I want to
array(3) {
[0]=> ["B", 2.2]
[1]=> ["C", 1.1]
[2]=> ["F", 3.9]
}
this is my code
function mergeArray($distance, $getID)
{
$mergeArray = array();
for ($i = 0; $i < count($distance); $i++) {
$mergeArray[] = array_splice($getID, $distance[$i]);
}
return $mergeArray;
}
Edited
help me please thx

Answer 1

You don't need "array_combine()", "array_slice()" or similar. Just iterate through the data and create a new one:
$a = [2.2, 1.1, 3.9];
$b = ["B", "C", "F"];
$new = [];
foreach ($a as $index => $value) {
$new[] = [
$b[$index], // Fetch the value with the same index from the other array
$value
];
}
Demo: https://3v4l.org/oseSV

Answer 2

You can use array_map to iterate over two arrays simultaneously and produce a new array:
$distance = array(3) {
[0]=>
float(2.2)
[1]=>
float(1.1)
[2]=>
float(3.9)
}
$getID = array(3) {
[0]=>
string(1) "B"
[1]=>
string(1) "C"
[2]=>
string(1) "F"
}
$output = array_map(function ($d, $id) {
return [$id, $d];
}, $distance, $getID);
Note that this code assumes that both arrays have the same length.
Offtopic:
A little advice about your code: always name your variable with something that allows you to know what's inside it, using correct plural too:
Your $distance variable contains an array off distances, so it nsme should be in plural.
Your $getID is not a function, so it should not be called get, but just $Ids instead.

Answer 3

$distance = [ 2.2, 1.1, 3.9 ];
$getID = [ "B", "C", "F" ];
$result = array_map(fn(string $id, float $distance) => [ $id, $distance ], $getID, $distance);
print_r($result);

Answer 4

For your current code to work you have to:
pass both elements to array_splice function as an array
pass the offset of where the function need to replace the value
as well as the number of how many elements should be removed
You should not reassign $mergeArray because array_splice work with pointer
Checkout the docs for more!
function mergeArray($distance, $getID)
{
$mergeArray = [];
for ($i = 0; $i < count($distance); $i++) {
array_splice($mergeArray,$i,1, [[
$distance[$i],
$getID[$i]
]]);
}
return $mergeArray;
}
however a better approach is to do as in M. Eriksson's ansewar.