How to create new row instead of using the same one? - php

Question

I have the following array:
$original_array = [
[
"group" => "g1",
"department" => "d1",
"team" => null,
"data_col1" => "some_data1",
"data_col2" => "some_data2"
],
[
"group" => "g1",
"department" => "d1",
"team" => null,
"data_col1" => "some_data3",
"data_col2" => "some_data4"
],
[
"group" => "g1",
"department" => "d1",
"team" => "t3",
"data_col1" => "some_data5",
"data_col2" => "some_data6"
],
[
"group" => "g4",
"department" => "d6",
"team" => "t11",
"data_col1" => "some_data7",
"data_col2" => "some_data8"
]
];
I want to "group" the array into common group/department/team.
I tried the following - I created a new array, then I assign the relevant keys (group/department/team) and otherwise I assign the value:
$new_array = [];
foreach ($original_array as $row) {
foreach ($row as $key => $value) {
if ($key === "group" || $key === "department" || $key === "team") {
$new_array[$key] = $value;
} else {
$new_array[] = $value;
}
}
}
The expected result is:
[
0 => [
group => "g1",
department => "d1",
team => null,
data => [
0 => [data_col1 => "some_data1", data_col2 => "some_data2"],
1 => [data_col1 => "some_data3", data_col2 => "some_data4"]
],
1 => [
group => "g1",
department => "d1",
team => "t3",
data => [
0 => [data_col1 => "some_data5", data_col2 => "some_data6"]
],
2 => [
group => "g4",
department => "d6",
team => "t11",
data => [
0 => [data_col1 => "some_data7", data_col2 => "some_data8"]
]
]
But the result is:
[
"group" => "g4"
"department" => "d6"
"team" => "t11"
0 => "some_data1"
1 => "some_data2"
2 => "some_data3"
3 => "some_data4"
4 => "some_data5"
5 => "some_data6"
6 => "some_data7"
7 => "some_data8"
]
why? Looks like it only assigns values to the last row in the original array

Answer 1

This code should give the good result :
foreach ($original_array as $row) {
$key = md5($row['group'] . $row['department'] . $row['team']);
if(!isset($new_array[$key])){
$new_array[$key] = [
'group' => $row['group'],
'department' => $row['department'],
'team' => $row['team'],
'data' => [],
];
}
$data = [];
foreach ($row as $k => $v) {
if ($k !== "group" AND $k !== "department" AND $k !== "team") {
$data[$k] = $v;
}
}
$new_array[$key]['data'][] = $data;
}
This give me that :
Array
(
[336a26e12ea082ff360f8482891e137c] => Array
(
[group] => g1
[department] => d1
[team] =>
[data] => Array
(
[0] => Array
(
[data_col1] => some_data1
[data_col2] => some_data2
)
[1] => Array
(
[data_col1] => some_data3
[data_col2] => some_data4
)
)
)
[f06623fdd946c84a0c0c30378ba3f6f5] => Array
(
[group] => g1
[department] => d1
[team] => t3
[data] => Array
(
[0] => Array
(
[data_col1] => some_data5
[data_col2] => some_data6
)
)
)
[0b284dc4a7dac108ec2b1205a6484056] => Array
(
[group] => g4
[department] => d6
[team] => t11
[data] => Array
(
[0] => Array
(
[data_col1] => some_data7
[data_col2] => some_data8
)
)
)
)