include_once('class_vaga.php');

$obj = new class_vaga();
$obj->host = '127.0.0.1';
$obj->username = 'root';
$obj->password = '';
$obj->table = 'vaga';
$obj->connect();


$_POST ['vaga'] = ['2'];

$return = json_decode($obj->ajaxCall('load_detalhes_vagas',array($_POST['vaga'][0])));

var_dump($return);

?>

include_once('class_vaga.php');

$obj = new class_vaga();
$obj->host = '127.0.0.1';
$obj->username = 'root';
$obj->password = '';
$obj->table = 'vaga';
$obj->connect();

$id_vaga = ' ';

foreach ($_POST as $key => $value) {

    if($key == "action"){
        $action = $value;
    }else{
            $id_vaga = $value;
    }
}

$return = json_decode($obj->ajaxCall('load_detalhes_vagas',array($id_vaga)));

var_dump($return);

?>

function loaddetalhes(idVaga){
       $.ajax({
        type: "POST",
        url: 'http://localhost/workspace/detalhes_vaga.php',
                    data: { action: 'load_detalhes_vagas', vaga: idVaga },
                    dataType: "json",
                    complete: function (data){
                    window.open('detalhes_vaga.php');
                    },
                });
      }

if(isset($_POST['vaga'],isset($_POST['action']) && $_POST['vaga'] && $_POST['action']){
     $json = json_decode($obj->ajaxCall($_POST['action'],$_POST['vagas']));
     var_dump($json);
}