Get specific object-item from array

Question

I'm using the following function where $task is an array of TaskData instances

var_dump(array_pop($task));

// outputs when used repeatdly:
object(TaskData)[18]
  private 'id_task' => string '4' (length=1)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[22]
  private 'id_task' => string '9' (length=1)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[27]
  private 'id_task' => string '18' (length=2)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[46]
  private 'id_task' => string '42' (length=2)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[18]
  private 'id_task' => string '47' (length=2)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[36]
  private 'id_task' => string '57' (length=2)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[35]
  private 'id_task' => string '63' (length=2)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[41]
  private 'id_task' => string '68' (length=2)
  private 'name' => null
  private 'process_id' => null

object(TaskData)[26]
  private 'id_task' => string '70' (length=2)
  private 'name' => null
  private 'process_id' => null

How can I access the id_task item (in the sample: '4','9','18','42')?

possible duplicate of [In PHP, is there a function that returns an array made up of the value of a key from an array of associative arrays?](http://stackoverflow.com/questions/10659875/in-php-is-there-a-function-that-returns-an-array-made-up-of-the-value-of-a-key) — Ken Y-N, Apr 02 '15 at 08:03
@KenY-N Op here has an array of `TaskData` instances, which are not the same as accessing simple arrays. — Félix Adriyel Gagnon-Grenier, Apr 02 '15 at 15:52

score 1 · Accepted Answer · edited May 23 '17 at 12:22

1

$task seems to be an array of TaskData instances. the member you are trying to reach is private. a read on visibility

private 'id_task'

if it were public it could be reached that way:

foreach ($task as $taskData) {
    var_dump($taskData->id_task);
}

you're perfectly right, setting a public getter for a private member is a way better idea:

public function getTaskID() {
    return $this->id_task;
}

edited May 23 '17 at 12:22

Community

1
1

answered Apr 02 '15 at 07:52

Félix Adriyel Gagnon-Grenier

8,422
10
52
65

1

I created a public function `public function getTaskID() {return $this->id_task;}` And it works perfectly, thanks ! – Atnaize Apr 02 '15 at 08:59

Get specific object-item from array

1 Answers1