How to array_unique dimensional arrays

Question

How to array_unique dimensional arrays I have array below :

Input Array

[0] => Array
    (
        [staff_id] => 1
        [service_id] => 1
        [avatar_url] => gallery-1.png
        [full_name] => Germaine
        [price] => 0.00
    )

[1] => Array
    (
        [staff_id] => 3
        [service_id] => 1
        [avatar_url] => team-5.png
        [full_name] => Jenny
        [price] => 0.00
    )

[2] => Array
    (
        [staff_id] => 5
        [service_id] => 1
        [avatar_url] => gallery-6.png
        [full_name] => Shawn
        [price] => 0.00
    )

[3] => Array
    (
        [staff_id] => 2
        [service_id] => 6
        [avatar_url] => team-3.png
        [full_name] => Gabriel
        [price] => 0.00
    )

[4] => Array
    (
        [staff_id] => 3
        [service_id] => 6
        [avatar_url] => team-5.png
        [full_name] => Jenny
        [price] => 0.00
    )

And i want have result:

Expected Output Array

[0] => Array
    (
        [staff_id] => 1
        [service_id] => 1
        [avatar_url] => gallery-1.png
        [full_name] => Germaine
        [price] => 0.00
    )

[1] => Array
    (
        [staff_id] => 3
        [service_id] => 1
        [avatar_url] => team-5.png
        [full_name] => Jenny
        [price] => 0.00
    )

[2] => Array
    (
        [staff_id] => 5
        [service_id] => 1
        [avatar_url] => gallery-6.png
        [full_name] => Shawn
        [price] => 0.00
    )

[3] => Array
    (
        [staff_id] => 2
        [service_id] => 6
        [avatar_url] => team-3.png
        [full_name] => Gabriel
        [price] => 0.00
    )

Can someone help me. How to do that ?. I use array_unique but it not woking with dimensional arrays. How to resolve this ? Thanks u

Answer 1

You can do this:

$output_array = array();
$arr_temp_id = array();
foreach($your_array as $arr)
{
      if(!in_array($arr['staff_id'], $arr_temp_id))
      {
          $arr_temp_id[] = $arr['staff_id'];
          $output_array[] = $arr;
      }
}

print_r($output_array);