Untitled

<?php

class pageHeader() {
  private $data = null;
  private $pdo = null;

  public function __construct(PDO $pdo) {
    $this->pdo = $pdo;
  }

  private function getData() {
    if (is_null($this->data)) {
      $statement = $PDO->prepare("SELECT * FROM head_info WHERE page_name = :page");
      $statement->bindParam(':page', $page->createBinds(), PDO::PARAM_STR);
      $statement->execute();

      $this->data = $statement->fetch();
    }

    return $data;
  }

  public function getDescription() {
    return $this->getData('page_description');
  }

  public function getTitle() {
    return $this->getData('page_keywords');
  }

  public function getKeywords() {
    return $this->getData('page_title');
  }
}

$PDO = new PDO("mysql:host=localhost;dbname=oop", "root", "");
$PDO->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
$PDO->setAttribute(PDO::ATTR_ORACLE_NULLS, PDO::NULL_TO_STRING);
$header = new pageHeader($PDO);


// index.php ////////////////////////////////////////////////////////////////////
<?php require_once 'classes.php'; ?>

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <meta name="description" content="<?php echo $header->getDescription(); ?>">
        <meta name="keywords" content="<?php echo $header->getKeywords(); ?>">
        <title><?php echo $header->getTitle(); ?></title>

    </head>
    <body>
    </body>
</html>