مبتدی: نحوه دریافت داده ها از دیتابیس به صورت آرایه

با سلام خدمت تمامی دوستان ، من یک موتور قالب درست کردم و میخوام که اخبار سایتم رو با اون نمایش بدم ولی تو کد نویسی کمی مشکل دارم .
این فایل template.class.php هستش :

<?php    class Template {       protected $file;        protected $values = array();        public function __construct($file) {            $this->file = $file;        }        public function set($key, $value) {            $this->values[$key] = $value;        }        public function output() {            if (!file_exists($this->file)) {                retu "Error loading template file ($this->file).<br />";            }            $output = file_get_contents($this->file);                        foreach ($this->values as $key => $value) {             $tagToReplace = "[@$key]";                    $output = str_replace($tagToReplace, $value, $output);            }
retu $output;        }        static public function merge($templates, $separator = "n") {            $output = "";                        foreach ($templates as $template) {               $content = (get_class($template) !== "Template")                      ? "Error, incorrect type - expected Template."                        : $template->output();               $output .= $content . $separator;            }                        retu $output;        }    }
?>

<article class="post">    <div class="wrapper"><header><span>[@title]</span><ul class="post-info"><li class="date">[@pdate]</li><li class="category">[@category]</li></ul></header><div class="pbod">[@content]</div><footer><a href="more.php?id=[@id]" title="[@title]" class="more">ادامه مطلب</a></footer></div></article>

<?php
include("template.class.php");                /**      * Defines an array for the posts.       * Each value of the array is an array itself with each user's data.     * Typically this would be loaded from a database.       */     include('../config.php');     $postQuery = mysql_query("SELECT * FROM posts ORDER BY id");          $postArrays = mysql_fetch_array($postQuery,MYSQL_ASSOC);       $postArray = array(                array("id" => "1", "title" => "Title", "content" => "Content", "pdate" => "2016", "category" => "category")                                  );      /**      * Loop through the posts and creates a template for each one.   * Because each user is an array with key/value pairs defined,   * we made our template so each key matches a tag in the template,       * allowing us to directly replace the values in the array.      * We save each template in the $postsTemplates array.   */    foreach($postArray as $post) {// posts = postarray , user = post         $row = new Template("post.tpl");                              foreach ($post as $key => $value) {                  $row->set($key, $value);             }               $postsTemplates[] = $row; //postsTemplate = postsTemplatE       }       /**      * Merges all our posts' templates into a single variable.       * This will allow us to use it in the main template.    */     $postsContents = Template::merge($postsTemplates);              /**      * Defines the main template and sets the posts' content.        */     $postsList  = new Template("list_posts.tpl"); $postsList->set("posts", $postsContents);                  echo $postsList->output();   ?>

$users = array(         array("useame" => "monk3y", "location" => "Portugal")           , array("useame" => "Sailor", "location" => "Moon")             , array("useame" => "Treix!", "location" => "Caribbean Islands")        );

Array(    [id] => 4    [title] => title    [content] => index    [morecontent] => more    [category] => 1,2,3    [author] => امیر محمد    [pdate] => 2016-06-21    [tags] => title,index,more,new,first,news,cms)