page.php
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page.php
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	<?php

	define('LONG_DATE_FORMAT', '%e %B %Y');

	class Page {
	public $url;

	/**
	* @var array Meta tags
	*/
	public $meta_tags;

	/**
	* @var string The page content
	*/
	public $data;

	public $title;

	function __construct ($url) {
	$this->url = $url;
	$this->data = file_get_contents($url);
	$this->analyse();
	}

	static function load ($url) {
	$pages = file('pages/index.dat', true);
	foreach ($pages as $line) {
	$page = explode("\t", $line);
	if (substr($url, 0, strlen($page[0])) == $page[0]) {
	$file = strtolower(trim($page[1])) . '.php';
	$class = trim($page[1]) . 'Page';

	require("pages/$file");
	return new $class($url);
	}
	}
	return new Page($url);
	}

	function analyse () {
	$this->meta_tags = $this->get_meta_tags();
	$this->title = $this->get_title();
	}

	function get_meta_tags () {
	return get_meta_tags($this->url);
	}

	function get_all_meta_tags () {
	//Thank you to Michael Knapp and Mariano
	//See http://php.net/manual/en/function.get-meta-tags.php comments
	preg_match_all('/<[\s]meta[\s]\b(name\|property\|itemprop)\b="?' . '([^>"])"?[\s]' . 'content="?([^>"])"?[\s][\/]?[\s]*>/si', $this->data, $match);

	if (isset($match) && is_array($match) && count($match) == 4)
	{
	$originals = $match[0];
	$names = $match[2];
	$values = $match[3];

	if (count($originals) == count($names) && count($names) ==
	count($values))
	{
	$metaTags = array();

	for ($i=0, $limiti=count($names); $i < $limiti; $i++)
	{
	$metaTags[$names[$i]] = $values[$i];
	}
	}
	}

	return $metaTags;
	}

	/**
	* Gets title
	*
	* @return string The page title
	*/
	function get_title () {
	return (preg_match("#<title>(.+)<\/title>#iU", $this->data, $title)) ? trim($title[1]) : '';
	}

	function is_article () {
	if (array_key_exists('dc_type', $this->meta_tags) && $this->meta_tags['dc_type'] == 'journalArticle') {
	return true;
	}
	return false;
	}
	}

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