Blabla

<?php
    class MYSQL {
        private static $_instance = null;
        private $_pdo,
                $_query,
                $_error = false,
                $_result,
                $_count = 0;

        private function __construct() {
            try {
                $this->_pdo = new PDO('mysql:host=' . CONFIG::getConfig('mysql/host') . ';dbname=' . CONFIG::getConfig('mysql/db'), CONFIG::getConfig('mysql/user'), CONFIG::getConfig('mysql/pass'));
            } catch(PDOException $e) {
                die($e->getMessage());
            }
        }

        public static function getInstance() {
            if(!isset(self::$_instance)) {
                self::$_instance = new MYSQL();
            }
            return self::$_instance;
        }

        public function query($sql, $params = array()) {
            $this->_error = false;
            $x = 1;
            if($this->_query = $this->_pdo->prepare($sql)) {
                if(count($params)) {
                    foreach($params as $param) {
                        $this->_query->bindValue($x, $param);
                        $x++;
                    }
                }

                if($this->_query->execute()) {
                    $this->_result = $this->_query->fetchAll(PDO::FETCH_OBJ);
                    $this->_count = $this->_query->rowCount();
                } else {
                    $this->_error = true;
                }
            }

            return $this;
        }

        public static function insert($table, $fields = array()) {
            if(count($fields)) {
                $keys = array_keys($fields);
                $values = null;
                $x = 1;

                foreach ($fields as $field) {
                    $values .= "?";
                    if($x < count($fields)) {
                        $values .= ', ';
                    }
                    $x++;
                }

                $sql = "INSERT INTO " . $table . " (`" . implode('`, `', $keys) . "`) VALUES ({$values})";

                if(!$this->query($sql, $fields)->error()) {
                    return true;
                }
            }
            return false;
        }

        public function result() {
            return $this->_result;
        }

        public function error() {
            return $this->_error;
        }

        public function count() {
            return $this->_count;
        }
    }