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? — Ken Y-N
– Ken Y-N, Commented Apr 2, 2015 at 8:03
@KenY-N Op here has an array of TaskData instances, which are not the same as accessing simple arrays. — Félix Adriyel Gagnon-Grenier
– Félix Adriyel Gagnon-Grenier, Commented Apr 2, 2015 at 15:52

Community · Accepted Answer · 2017-05-23 12:22:17Z

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, 2017 at 12:22

CommunityBot

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answered Apr 2, 2015 at 7:52

Félix Adriyel Gagnon-Grenier

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1 Comment

Atnaize Over a year ago

I created a public function public function getTaskID() {return $this->id_task;} And it works perfectly, thanks !

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