__get__set

<?php
$start = microtime(true);

class Post {

    private $_data = array(
        'id'=>NULL
        ,'title'=>NULL
        ,'status'=>NULL
        ,'blog'=>NULL
        ,'comments'=>NULL
        ,'pubdate'=>NULL
    );

    public function __construct() {}


    public function __get($p) {

        if (self::_dataKeyExists($p)) {
            return $this->_data[$p];
        }
    }

    public function __set($p,$v) {

        if (self::_dataKeyExists($p)) {
            $this->_data[$p] = $v;
        }

    }

    public function dump() {
        print_r($this->_data);
    }

    private function _dataKeyExists($k) {
        return (bool) array_key_exists($k,$this->_data);
    }

}

$post = new Post();
$post->id = 2;
$post->status = 'Ativo';
$post->dump();
echo microtime(true) - $start;
echo PHP_EOL;