Linking arrays according to common values - laravel

Question

I have some array like
0: [id: '1',department: 'xyz',date: '10-10-2019',time: '12:50']
1: [id: '1',department: 'xyz',date: '11-10-2019',time: '10:30']
2: [id: '2',department: 'abc',date: '09-09-2019',time: '09:50']
3: [id: '2',department: 'abc',date: '07-07-2019',time: '03:20']
I want them to be merged according to the id and department
so the 0 and 1 array will be merged together and the output should be something like
0:[id: '1',department: 'xyz',[[date: '10-10-2019',time: '12:50'],[date: '11-10-2019',time: '10:30']]]
and the 2 and 3 array will be merged together and the output should be something like
1:[id: '2',department: 'abc',[[date: '09-09-2019',time: '09:50'],[date: '07-07-2019',time: '03:20']]]
how can I do it?

Answer 1

Try this..
$input = [
0 =>['id' => '1','department' => 'xyz','date' => '10-10-2019','time' => '12:50'],
1 => ['id' => '1','department' => 'xyz','date' => '11-10-2019','time' => '10:30'],
2 => ['id' => '2','department' => 'abc','date' => '09-09-2019','time' => '09:50'],
3 =>['id' => '2','department' => 'abc','date' => '07-07-2019','time' => '03:20']];
$output = [];
$id_array = [];
foreach ($input as $values)
{
$id_array [] = $values['id'];
}
$unique_id_array = array_unique($id_array);
foreach($input as $key => $in)
{
if(array_key_exists($key,$unique_id_array))
{
$output[] = [
'department' => $in['department'],
'id' => $in['id']
];
}
}
foreach($input as $in)
{
foreach($output as $key => $out)
{
if($out['id'] == $in['id'] && $out['department'] == $in['department'])
{
$output[$key]['date_time'][] = ['date' =>$in['date'],'time' => $in['time']];
}
}
}
print_r($output);die();
The output is going to be
Array
(
[0] => Array
(
[department] => xyz
[id] => 1
[date_time] => Array
(
[0] => Array
(
[date] => 10-10-2019
[time] => 12:50
)
[1] => Array
(
[date] => 11-10-2019
[time] => 10:30
)
)
)
[1] => Array
(
[department] => abc
[id] => 2
[date_time] => Array
(
[0] => Array
(
[date] => 09-09-2019
[time] => 09:50
)
[1] => Array
(
[date] => 07-07-2019
[time] => 03:20
)
)
)
)

Answer 2

Hello i think this will works fine,and it's easy and best way to achieve your output.
i tried many codes in my system with data given by you,just try this
i hope this will work for you as well.
<?php
$inputArr = [0 =>['id' => '1','department' => 'xyz','date' => '10-10-2019','time' => '12:50'],1 => ['id' => '1','department' => 'xyz','date' => '11-10-2019','time' => '10:30'],2 => ['id' => '2','department' => 'abc','date' => '09-09-2019','time' => '09:50'],3 =>['id' => '2','department' => 'abc','date' => '07-07-2019','time' => '03:20']];
print_r($inputArr);
$second_copy = $inputArr;
foreach ($inputArr as $key => $single)
{
$goalArr[$single['id']] = getRow($single['id'],$single['department'],$second_copy);
}
function getRow($id,$department,$second_copy)
{
$returnArr['id'] = $id;
$returnArr['department'] = $department;
foreach ($second_copy as $key => $single)
{
if($id == $single['id'] && $department == $single['department'])
{
$returnArr['date'][] = $single['date'];
$returnArr['time'][] = $single['time'];
}
}
return $returnArr;
}
echo "<br>Output is: <br>";
print_r($goalArr);
?>