public function getEvents()
{
$dataReader = new DataReader();
$data = $dataReader->getDataFromHtml($this->endpoint);
$xpath = new DOMXPath($data);
$items = $xpath->query("//div[contains(@class, 'conference-listing')]/ol/li[position() <= 3]/h4/a");
if (0 === count($items)) {
return '';
}
$output = '<p>You may also remember me from such events as ';
$numItems = $items->length;
$doneItems = 0;
for ($i = $numItems - 1; $i >= 0; $i--) {
$item = $items->item($i);
$doneItems++;
$joiner = '.';
if ($doneItems < $numItems - 1) {
$joiner = ', ';
} else {
if ($doneItems < $numItems) {
$joiner = ' and ';
}
}
$text = $item->nodeValue;
$url = $item->attributes->getNamedItem('href')->nodeValue;
$output .= "<a href='http://lanyrd.com{$url}'>{$text}</a>{$joiner}";
}
$output .= '</p>';
return $output;
}
/**
* DataReader factory
* Executes a SQL statement (with optional parameters) and returns a new DataReader ready for iteration
*
* @param string $sql
* @param array $parameters
* @param \PDO $connection
* @param int $fetchMode
*
* @return DataReader|bool
*/
public static function create($sql, $parameters = null, $connection = null, $fetchMode = \PDO::FETCH_ASSOC)
{
$_reader = new DataReader(Sql::createStatement($sql, $connection, $fetchMode));
if (false === ($_result = $_reader->execute($parameters))) {
// Don't be wasteful
unset($_reader);
return false;
}
return $_reader;
}
function getHtmlForStream($stream, $url, $maxItems = 100)
{
$dataReader = new DataReader();
$data = $dataReader->getDataFromFeed($url);
$backlog = array();
$output = '';
$numItems = 0;
foreach ($data->channel->item as $item) {
if ($numItems >= $maxItems) {
continue;
}
$output .= getHtmlForEntry($item, $stream, $backlog, !(bool) $numItems);
$numItems++;
}
if (sizeof($backlog) > 0) {
$output .= getHtmlForEntry($item, $stream, $backlog);
}
if ('' == $output) {
error_log('returning early');
return $output;
}
return "<ol>{$output}</ol>";
}
/**
* Creates and returns an optionally parameter-bound \PDOStatement object suitable for iteration
*
* @param string $sql
* @param array $parameters
* @param \PDO $connection
* @param int $fetchMode Set to false to not touch fetch mode
*
* @return DataReader
*/
public static function query($sql, $parameters = null, &$connection = null, $fetchMode = \PDO::FETCH_ASSOC)
{
return DataReader::create($sql, $parameters, $connection, $fetchMode);
}
<?php
/* This module contains the HTML for the header of the page.
*/
require_once "../data_reader.php";
require_once "../front_viewers.php";
?>
<header>
<div id="title">
<?php
echo DataReader::readConfigFile()['title'];
?>
</div>
<div id="login-area">
<?php
if (validLoginCode()) {
// User is logged in, so we show the login identifier
echo FrontViewers::getLoginIdentifier();
} else {
// User isn't logged in, so we show the login form.
echo FrontViewers::getLoginForm();
}
?>
</div>
</header>
