Pass data from curl to view on codeigniter - php

Question

I have a json data from the curl, then I want to send it to a view in codeigniter but when I display it appears an error "illegal string offset".
json data:
{
"ProgramId": "29aee327-cd89-48c0-b79f-69a0e2b03709",
"ProgramName": "Microsoft CSP",
"CountryFullName": "Indonesia",
"CurrencyCode": "IDR",
"ProductGroups": [
{
"GroupName": "Microsoft 365",
"Products": [
{
"ProductId": "3451a3b0-8cda-44a7-bad7-c30be81c4aaa",
"ProductName": "Microsoft 365 F1",
"ProductGroup": "Microsoft 365",
"ProductSku": "3451A3B0-8CDA-44A7-BAD7-C30BE81C4AAA",
"Price": 0,
"MinQty": 1,
"MaxQty": 10000000,
"Qty": 0,
"UnitPrice": 132300,
"ProductUnit": "Licenses",
"RetailPrice": 147000,
"CommitmentValue": null,
"TieredProductSku": null,
"ProductType": "NON-SPECIFIC",
"ProductDescription": "Designed to meet the needs of firstline workers in your organization. Offers best-in-class productivity across devices while providing IT with security and control.",
"ProductShortDescription": null,
"ProductRestrictions": null,
"IsTrialProduct": false,
"BillingCycleDuration": 1
}
],
"IsExpanded": true,
"Order": -10
}
then I retrieve the data from a controller to be sent to the display, here I use the file_get_contents function
public function index()
{
$this->template->add_includes('js', 'assets/js/holder.js');
$init = "";
$this->template->add_init($init);
// GET data
$source = base_url().'api/products/'.$this->tenantId;
$content = file_get_contents($source);
$result = json_decode($content, true);
//print_r($result); exit;
$data['products']=$result;
$this->template->load('templates/Template', 'Demo',$data);
}