PHP array of objects without access to get methods

Question

I’m trying to access the getters which refer to an object, but this object is in an array, and by no means can I access them. Follow the DAO class (where the mess is taking place and I’m taking the test) and the VO class:

DAO:

<?php
error_reporting(-1); 
ini_set('display_errors', 'On');
define('CONFIG', dirname(dirname(__DIR__)). '/config'. DIRECTORY_SEPARATOR);
define('MODEL_VO', dirname(dirname(__DIR__)). '/model/vo'. DIRECTORY_SEPARATOR);
include(CONFIG . 'conexao.php');
include(MODEL_VO . 'prioridade.php');

Class PrioridadeDao{
    private $conexao;
    private $prioridadeObj;
    private $prioridadeArrayObj = array();

    public function __construct(){
        $this->conexao = new Conexao();
    }

    public function teste(){
        echo "teste";
    }


    public function selectAll(){
        if(!$this->conexao->conecta()){
            exit;
        } else {
            $result = pg_query($this->conexao->conecta(), "SELECT * FROM prioridade");
            while ($consulta = @pg_fetch_array($result)){
                $this->prioridadeObj = new Prioridade($consulta['id'], $consulta['nivel'], $consulta['nome']);
                $this->prioridadeArrayObj[] = $this->prioridadeObj;
            }

            #### Aqui onde a coisa ocorre, no cast aparentemente está certo não consigo é acessar as coisas após ele
            #### por isso usei o var_dump para ver o que tem na saida.

            $this->prioridadeArrayObj = (object) $this->prioridadeArrayObj;
            var_dump($this->prioridadeArrayObj);
            $this->conexao->encerra();
        }
    }
}

Model VO:

<?php
Class Prioridade{
    private $id;
    private $nivel;
    private $nome;

    //public function __construct(){

    //}

    public function __construct($id, $nivel, $nome){
        $this->setId($id);
        $this->setNivel($nivel);
        $this->setNome($nome);
    }

    #GETTERS AND SETTERS
    public function setId($id){
        $this->id = $id;
    }

    public function setNivel($nivel){
        $this->nivel = $nivel;
    }

    public function setNome($nome){
        $this->nome = $nome;
    }

    public function getId(){
        return $this->id;
    }

    public function getNivel(){
        return $this->nivel;
    }

    public function getNome(){
        return $this->nome;
    }
}

As I am doing in MVC I want to use the interactions between the classes correctly. (If someone has a nice tutorial of PHP mvc thank you because the references I have found are confusing me). I spent a lot of time programming with Java (Desktop) and to access the methods is super easy, already in PHP I’m having many difficulties.

Another question, can I do 2 constructor methods in a class that is not even possible in Java? Ex:
1 - public Function __Construct(){}
2 - public Function __Construct($param1, $param2){}

Thank you in advance.
If I replace "var_dump" with "print_r" I have the following result:

stdClass Object ( [0] => Priority Object ( [id:Priority:private] => 1 [level:Priority:private] => 1 [name:Priority:private] => VERY LOW ) [1] => Priority Object ( [id:Priority:private] => 2 [level:Priority:private] => 2 [name:Priority:private] => LOW ) [2] => Priority Object ( [id:Priority:private] => 3 [level:Priority:private] => 3 [name:Priority:private] => NORMAL ) [3] => Priority Object ( [id:Priority:private] => 4 [level:Priority:private] => 4 [name:Priority:private] => HIGH ) [4] => Priority Object ( [id:Priority:private] => 5 [level:Priority:private] => 5 [name:Priority:private] => VERY HIGH ) )

Answer 1

In the method selectAll() it is not necessary to cast the array for Object, the idea is the same of java create an array and then iterate on it, the difference is that you type it with Generics something like Lista<Prioridade> and in php no, but the objects of that type are inside the array.

$this->prioridadeArrayObj = (object) $this->prioridadeArrayObj;

I suggest you return the array at the end of the method, like this.

while ($consulta = pg_fetch_array($result)){
   $this->prioridadeObj = new Prioridade($consulta['id'], $consulta['nivel'], $consulta['nome']);
   $this->prioridadeArrayObj[] = $this->prioridadeObj;
}
$this->conexao->encerra();
return $this->prioridadeArrayObj;

After that take the return of selectAll() and make a foreach.

$dao = new PrioridadeDao();
$itens = $dao->selectAll();
foreach($itens as $item){
   $echo $item->getNivel() .' - '. $item->getNome();
}

Another question, has as I do 2 methods builders in a class that is not even possible in Java? > Ex:

1 - public Function> __Construct(){}

2 - public Function __Construct($param1, $param2){}

PHP does not support Overload so it is not possible to have multiple constructs, however it is possible to have a function/constructor with a variable number of arguments.

In php5.6 you can use:

function funcao(...$param) {

In previous versions use the function func_num_args

Recommended reading

What good is a builder?

It is possible to create classes with two constructors?

How to access Object properties with Names like integers?