merge all arrays with same title [duplicate] - php

Question

This question already has answers here:
How to group subarrays by a column value?
(20 answers)
PHP - Group Array by its Sub Array Value (Indexed Array)
(1 answer)
Closed 6 months ago.
i have this array in php json.
i have made it to sort array by first Characther.
but now i'm stuck on how to merge the data under the same title.
my response now is.
[
{
"title": "A",
"data": {
"id": "317",
"name": "Aesethetica"
}
},
{
"title": "A",
"data": {
"id": "318",
"name": "Astonos"
}
},
{
"title": "B",
"data": {
"id": "320",
"name": "Bourjois"
}
},
{
"title": "B",
"data": {
"id": "321",
"name": "Bioderma"
}
}
]
i need to merge all data under each same title.
something like this:
[
{
"title": "A",
"data": [
{
"id": "317",
"name": "Aesethetica"
},
{
"id": "318",
"name": "Astonos"
}
]
},
{
"title": "B",
"data": [
{
"id": "320",
"name": "Bourjois"
},
{
"id": "321",
"name": "Bioderma"
}
]
}
]
kindly help.
Thanks
i got this now:
i made this update.. but still not the needed result.
this is my php code...
$result = [];
foreach ($data as $item) {
$firstLetter = substr($item['name'], 0, 1);
$result[] = [
'title' => $firstLetter = ctype_alnum($firstLetter) ? $firstLetter : '#',
'data' => $item
];
}
foreach ($result as $key => $item) {
$arr[$item['title']][$key] = $item;
}
and this is the result.
{
"A": [
{
"title": "A",
"data": {
"brand_id": "312",
"brand_name": "Adidsa"
}
},
{
"title": "A",
"data": {
"id": "314",
"name": "Adio"
}
},
still can't find make the needed response..

Answer 1

This is not perfomance optimized, but shows a simple solution.
Collect all data grouped by title, then reformat the array to your expected result.
$array = json_decode($json, true);
$collect = [];
foreach($array as $item) {
$collect[$item['title']][] = $item['data'];
}
ksort($collect);
$titles = [];
foreach($collect as $title => $data) {
$names = array_column($data, 'name');
array_multisort($names, SORT_ASC, SORT_STRING, $data);
$titles[] = ['title' => $title, 'data' => $data];
}
echo json_encode($titles, JSON_PRETTY_PRINT); results in
[
{
"title": "A",
"data": [
{
"id": "317",
"name": "Aesethetica"
},
{
"id": "318",
"name": "Astonos"
}
]
},
{
"title": "B",
"data": [
{
"id": "321",
"name": "Bioderma"
},
{
"id": "320",
"name": "Bourjois"
}
]
}
]