how to explode array in php - php

Question

i have data array, and this my array
Array
(
[0] => Array
(
[id] => 9,5
[item] => Item A, Item B
)
[1] => Array
(
[id] => 3
[item] => Item C
)
)
in array 0 there are two ID which I separated using a comma, I want to extract the data into a new array, how to solve this?
so the output is like this
Array
(
[0] => Array
(
[id] => 9
[item] => Item A
)
[1] => Array
(
[id] => 3
[item] => Item C
)
[2] => Array //new array
(
[id] => 5
[item] => Item B
)
)
this my code
$arr=array();
foreach($myarray as $val){
$arr[] = array(
'id' => $val['id'],
'item' => $val['item'],
);
}
echo '<pre>', print_r($arr);

Answer 1

$arr = [
array(
'id' => '9,5',
'item' => 'Item A, Item B'
),
array(
'id' => 3,
'item' => 'Item C'
)
];
$newArr = array_reduce($arr, function($tmp, $ele){
$arrIds = explode(',', $ele['id']);
$arrItems = explode(',', $ele['item']);
forEach($arrIds as $key => $arrId) {
$tmp[] = array('id' => $arrId, 'item' => $arrItems[$key]);
}
return $tmp;
});

Answer 2

The code down below should do the job. But I didn't understand why you didn't create those items seperately in the first place.
foreach ($arr as $i => $data) {
if (!str_contains($data['id'], ',')) continue;
$items = explode(',', $data['item']);
foreach(explode(',', $data['id']) as $i => $id) {
$new = ['id' => $ids[$i], 'item' => $items[$i]];
if ($i) $arr[] = $new;
else $arr[$i] = $new;
}
}