Angular get value from NgModel

[SimonIoa]

Hello I want to send multiple values from a to an api function.

on the db i store the values in text format. The value that is stored is array

on the Swal alert, I am getting [object object] but i want to get each value e.g. Painting or Graphic Design.

Here is my code so far.

html

<ion-item>
  <ion-label>Painting</ion-label>
  <ion-toggle color="gold" [(ngModel)]="creative.Painting" (click)="creativeInterest(creative)"></ion-toggle>
</ion-item>

<ion-item>
  <ion-label>Graphic Design</ion-label>
  <ion-toggle color="tertiary" [(ngModel)]="creative.Graphic Design" (click)="creativeInterest(creative)"></ion-toggle>
</ion-item>

.ts

   export class CreativeSettingsPage implements OnInit {
    creative: any = {};
    userDetails: any = {};
    constructor(
      public userData: UserData
  ) {
    this.userDetails = this.userData.getUserData();
   }

  ngOnInit() {
  }

  creativeInterest(creative:string)
  {
    this.userData.creativeSettings(this.userDetails.uid, creative).pipe(
      map((data: any) => {
        if (data.success) {
          Swal.fire({
            icon: 'success',
            title: creative,
            showConfirmButton: false,
            backdrop: false,
            timer: 2500
          })
        }
      })
    ).subscribe()
  }

user-data.ts

    creativeSettings(uid: number, creative:any) {
        const url = this.appData.getApiUrl() + 'creativeSettings';
        const data = this.jsonToURLEncoded({
            uid: uid,
            creative: creative
        });
        return this.http.post(url, data, { headers: this.options });
    }

php

function creativeSettings()
{
$request = \Slim\Slim::getInstance()->request();
$response['success'] = true; // 1 true if not errors OK NOTHING

$uid = $request->post('uid');
$creative_interests =  $request->post('creative');

$db = getDB();
$sql = "UPDATE users SET creative_interests = :creative_interests WHERE uid = :uid";
$stmt = $db->prepare($sql);
$stmt->bindParam("uid", $uid);
$stmt->bindParam("creative_interests", $creative_interests);
$stmt->execute();
$db = null;

echo json_encode($response);

}