function selectfuncionarios($tabela,$colunas='*',$where=1){
    include 'conect.php';
    $sql ="SELECT $colunas FROM $tabela WHERE $where";
    $executar= mysqli_query($con,$sql);
    $colunasdivididas = explode(",", $colunas);
    $numerodecolunas = count($colunasdivididas);
    $ii=0;
    $numero=['numeroderetorno'=>2];
    while($row = mysqli_fetch_array($executar)){
        if($colunas!='*' AND $numerodecolunas>0 ){


                for($l=0;$l<$numerodecolunas;$l++){
                        $array[$ii] =array($ii=>$row[$colunasdivididas[$l]]);

                    $ii++;
                }

        }elseif($colunas=='*'){

        }else{
            $array =array($colunasdivididas[$l]=>$row[$colunasdivididas[$l]]);

        }


    }


    return json_encode($array);
}

while($row = mysqli_fetch_array($result)) {
    $posts['post_id'] = $row['post_id'];
    $posts['post_title'] = $row['post_title'];
    $posts['type'] = $row['type'];
    $posts['author'] = $row['author'];
}