Appending property to stdClass Object in PHP while in loop - php

Question

Looping through an Array of stdClass Objects, I'd like to add a new property to the Object.
Of all the ways I've tried and researched, none end up adding the new property.
Array
(
[0] => stdClass Object
(
[id] => 12345678
[profile] => stdClass Object
(
[type] => superAdmin
)
)
[1] => stdClass Object
(
[id] => 89101112
[profile] => stdClass Object
(
[type] => admin
)
)
)
I have a function that takes in the above array, and then should iterate through it, if certain criteria met, add a new property to the object, and return the array.
public function addToProfile($usernameArr) {
$users = $usernameArr;
foreach ($users as $key => $user) {
if (in_array("admin", $user->profile->type)) {
$users[$key]->profile->newProperty = "newItem";
}
}
return $users;
}
I've also tried the json_decode(json_encode($users), true) way which did not end up with the result I'm looking for.

Answer 1

You can do it via transformation $user object to the array and back to object:
foreach ($users as $key=>&$user) {
if (in_array("admin", $user->profile->type)) {
// represents current $user->profile object as an array
$tmp = json_decode(json_encode($user->profile),true);
// add a new index
$tmp['newproperty'] = "$key newItem";
// transform back to an object
$user->profile = (object)($tmp);
}
}
Demo
You can put it into the function like:
function addNewProp($data, $prop_name, $prop_val){
foreach ($data as $key=>$user) {
if (in_array("admin", $user->profile->type)) {
$tmp = json_decode(json_encode($user->profile),true);
$tmp[$prop_name] = $prop_val;
$user->profile = (object)($tmp);
}
}
return $data;
}
Demo
Your input value of type has string datatype. Instead of
if (in_array("admin", $user->profile->type)) {
you should use
if ($user->profile->type === "admin") {

Answer 2

Generally, I try and avoid doing things like (object)array(...) and json_decode(json_encode()) in PHP as it is not immediately clear to the reader why your doing this round about stuff, so I will provide an alternative answer.
function addNewProp(array $users, $propName, $propVal)
{
for ($i = 0; $i < count($users); $i++) {
// You may need to do extra checking here if profile and type are not required.
if (isset($users[$i]->profile->type->admin)) {
$users[$i]->profile->$propName = $propVal;
}
}
return $users;
}