<?php
define('_JEXEC', 1);
define('JPATH_BASE', dirname(dirname(__FILE__)));
define('DS', DIRECTORY_SEPARATOR);

require_once(JPATH_BASE . DS . 'includes' . DS . 'defines.php');
require_once(JPATH_BASE . DS . 'includes' . DS . 'framework.php');
require_once(JPATH_BASE . DS . 'libraries' . DS . 'joomla' . DS . 'factory.php');

define('JPATH_COMPONENT_ADMINISTRATOR', JPATH_BASE . DS . 'administrator' . DS . 'components' . DS . 'com_content');

$mainframe = JFactory::getApplication('site');

require_once(JPATH_ADMINISTRATOR . '/components/com_content/models/article.php');

$string        = file_get_contents("items.json");
$json_str      = json_decode($string, true);
$title_default = 'No Title';
$i             = 0;
$new_article   = new ContentModelArticle();
foreach ($json_str as $row) {
    $data = array(
        'title' => isset($row['title'][0]) && strlen(trim($row['title'][0])) != 0 ? $row['title'][0] : $title_default,
        'alias' => $row['alias'][0],
        'introtext' => $row['content'],
        'state' => 1,
        'catid' => $row['catid'][0],
        /* don't hard code here! */
        'created' => $row['pdate'],
        'created_by' => 434,
        'created_by_alias' => $row['poster'][0],
        'publish_up' => $row['pdate'],
        'urls' => json_encode($row['urls']),
        'access' => 1,
        'tags' => $row['tags'],
        'metadata' => array(
            'robots' => "",
            'author' => implode(" ", $row['poster']),
            'rights' => "",
            'xreference' => ""
        )
    );
    ++$i;

    $new_article->save($data);

    echo 'Record ' . $i . ' for post ' . $data['alias'] . ' processed';
    echo "\r\n";
}
?>