stdClass对象数组出现问题

Question

I have one Array. It return this values:

Array
(
[0] => stdClass Object
  (
     [seccionalid] => 1
     [seccionaldescricao] => DELSECPOL DE SJRIO PRETO
  )

[1] => stdClass Object
  (
     [seccionalid] => 2
     [seccionaldescricao] => DELSECPOL DE JALES
  )

[2] => stdClass Object
  (
     [seccionalid] => 3
     [seccionaldescricao] => DELSECPOL DE ARAÇATUBA
  )

I trying return with echo or print_r, all values of [seccionaldescricao] of Array:

$dados = $seccionais->fetchAll(PDO::FETCH_OBJ);
$dados2 = $dados[0]->seccionaldescricao;

print_r($dados2);

But, returned only one row:

2DELSECPOL DE SJRIOPRETO

I liked know, how returning all values [seccionaldescricao] of Array e why the number 2(two) is description concatenaded;

Answer 1

Just loop through all inner objects with array_map() and return the property, eg

$dados2 = array_map(function($v){
    return $v->seccionaldescricao;
}, $dados);