Laravel 5.4 array remove key index - php

Question

In my controller, this statement generates an array:
// sort the region collection by continent for faster access in front end
$finalRegions = $regions->sortBy('continent_id');
{
"0":{
"id":1,
"name":"Alaska",
"image_x":227,
"image_y":117
},
"1":{
"id":5,
"name":"Australian Antartic Territory",
"image_x":1187,
"image_y":1037
....
}
}
How do I remove the index from the resulting object, so it looks like this:
[
{
"id":1,
"name":"Alaska",
"image_x":227,
"image_y":117
},
{
"id":5,
"name":"Australian Antartic Territory",
"image_x":1187,
"image_y":1037
....
}
]
This is stored in a field cast as json in the table class.

Answer 1

$res = [];
foreach ($finalRegions as $key => $value) {
$res[] = $value;
}
// $res contains desired result
Edit: Simple one liner (thanks to Jannie)
$res = array_values($finalRegions)

Answer 2

Since you have "Laravel" in your question title and it looks like you already have your regions in a Laravel Collection, there is an easier way. Just pipe your results through ->values() after the ->sortBy() clause like this:
$finalRegions = $regions->sortBy('continent_id')->values();

Answer 3

I still don't get why you need to remove those indexes, but you can do by this way.
<?php
$jsonArr = '{
"0":{
"id":1,
"name":"Alaska",
"image_x":227,
"image_y":117
},
"1":{
"id":5,
"name":"Australian Antartic Territory",
"image_x":1187,
"image_y":1037
}
}';
$decodeArr = json_decode($jsonArr, true);
print_r(json_encode($decodeArr));
This is just my idea, and you can edit part of your code where the query returns your JSON string.