Issue when create a user on Azure B2C using Microsoft Graph API - php

Question

Issue
I'm trying to build a little script PHP to integrate with the Microsoft Graph API.
I have an admin account in Azure, and have set up a new app through the portal. I've downloaded and installed the PHP SDK, and have managed to set everything up so that I can get a user successfully.
However, POSTing a new user returns me a 400 bad request:
$newUser = new User();
$newUser->setAccountEnabled(true);
$newUser->setGivenName('name');
$newUser->setSurname('surname');
$newUser->setUserPrincipalName('email#dot.com');
$password = new PasswordProfile();
$password->setPassword("pwd");
$password->setForceChangePasswordNextSignIn(false);
$newUser->setPasswordProfile($password);
$identities = new ObjectIdentity();
$identities->setSignInType("emailAddress");
$identities->setIssuer("a tenantId");
$identities->setIssuerAssignedId("email#dot.com");
$newUser->setIdentities($identities);
$user = $this->graph->createRequest('POST', '/users')
->attachBody($newUser)
->setReturnType(Model\User::class)
->execute();
Returns:
{"error":{"code":"BadRequest","message":"Property identities in payload has a value that does not match schema.","innerError":{"date":"2021-11-15T15:26:24","request-id":"an id","client-request-id":"an id"}}}
How can I solve this issue?
Thanks for any help.
Update
I have found a solution for this problem (obviously, is temporary).
The section "identities" must be set as an array (in JSON) like in this example
"identities": [
{
"signInType": "emailAddress",
"issuer": "contoso.onmicrosoft.com",
"issuerAssignedId": "jsmith#yahoo.com"
}
]
Probably, the PHP code above not set the section "identities" as an array.
Now, I send directly a JSON with the section "identities" as an array but I would like to use the PHP code above.
How can I transform the PHP code above to pass "identities" as an array like in the JSON example?
Thanks again.

Answer 1

Try creating an array and adding the identities on there like. This will add the identities property as an array of Model\ObjectIdentity()
...
$identities = [];
$identity = new Model\ObjectIdentity();
$identity->setSignInType("type");
$identity->setIssuer("issuer");
$identity->setIssuerAssignedId("issure-assigned-id");
array_push($identities, $identity);
$newUser->setIdentities($identities);
...