PHP foreach loop to build multi array - php

Question

I'm trying to build a multi array with this structure:
Array
(
[2] => Array //this is the user's unique ID
(
[name] => Jack
[location] => Somerville, Massachusetts, United States
[cars] => Array
(
[10] => Toyota //this is the car's unique ID
[11] => Porsche
)
)
[5] => Array
(
[name] => Luke
[location] => Schwelm, North Rhine-Westphalia, Germany
[cars] => Array
(
[1] => Honda
[2] => VW
[5] => Maserati
)
)
[1] => Array
(
[name] => Jabba
[location] => Denver, Colorado, United States
[cars] => Array
(
[3] => Tesla
)
)
)
I am using this foreach loop but am stuck in getting the cars array embedded within the search data array.
Each user may have more than one car so I would need to loop through all cars for each user, generate that array, and put it in the original foreach loop.
$search_data = array();
foreach ($query->result() as $row) {
$search_data[$row->id] = array(
'name' => $row->name,
'location' => $row->location,
'cars' => array($row->car_id), //this is where I need to insert another array
);
}
return $search_data;
Any suggestions how to do this?
Thanks for helping!
SAMPLE TABLE DATA
USER NAME LOCATION CARS
2 JACK A TOYOTA
2 JACK A PORSCHE
5 LUKE B HONDA
5 LUKE B VW
5 LUKE B MASERATI
1 JABBA C TESLA

Answer 1

It seems that you are creating the array through a database table. So can you please give 2 or more sample data. it'll be easier to give an answer if sample data is there.
Edit:
Well this might not be the best code but I think you'll be able to figure out a better way after seeing this
$id = $row['id'];
if (!isset($search_data[$id])){
$search_data[$id] = array();
}
$search_data[$id]['name'] = $row['name'];
$search_data[$id]['location'] = $row['location'];
if (isset($search_data[$id]['cars'])) {
array_push($search_data[$id]['cars'],$row['cars']);
}else{
$search_data[$id]['cars'] = array($row['cars']); //this is where I need to insert another array
}