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Convert this RSS parsing code into a google like pagination

Started by johnsonsmith1, Nov 15 2009 07:01 PM

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#1 johnsonsmith1

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Posted 15 November 2009 - 07:01 PM

I have this RSS parsing code and it paginates , but only uses 'next' and 'previous' links instead of how google does it. I want it to read like this: first 1 2 3.... last

<?php
require_once('simplepie.inc');
 
// Set your own configuration options as you see fit.
$feed = new SimplePie();
$feed->set_feed_url(array(
'http://feeds2.feedburner.com/MishsGlobalEconomicTrendAnalysis',
'http://feeds.feedburner.com/TheBigPicture',
'http://feeds2.feedburner.com/ChartsAndCoffee',
		'http://feeds.feedburner.com/typepad/tradeblogs/the_slope_of_hope_with_ti',
));
$success = $feed->init();



// Make sure the page is being served with the right headers.
$feed->handle_content_type();
 
// Set our paging values
$start = (isset($_GET['start']) && !empty($_GET['start'])) ? $_GET['start'] : 0; // Where do we start?
$length = (isset($_GET['length']) && !empty($_GET['length'])) ? $_GET['length'] : 5; // How many per page?
$max = $feed->get_item_quantity(); // Where do we end?
 
// When we end our PHP block, we want to make sure our DOCTYPE is on the top line to make 
// sure that the browser snaps into Standards Mode.
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<head>
<title>SimplePie: Demo</title>
 
<link rel="stylesheet" href="styles.css" type="text/css" media="screen, projector" />
 
</head>
 
<body>
<div id="site">
   <?php
   // If we have an error, display it.
   if ($feed->error())
   {
   echo '<div class="sp_errors">' . "\r\n";
   echo '<p>' . htmlspecialchars($feed->error()) . "</p>\r\n";
   echo '</div>' . "\r\n";
   }
?>
 
   <?php if ($success): ?>
	  <?php
   // get_items() will accept values from above.
   foreach($feed->get_items($start, $length) as $item):
$feed = $item->get_feed();
?>
 
		 <div class="chunk">
 
			<h4><?php if ($item->get_permalink()) echo '<a href="' . $item->get_permalink() . '">'; echo $item->get_title(true); if ($item->get_permalink()) echo '</a>'; ?></h4>
			
			<p class="footnote">Source: <a href="<?php echo $feed->get_permalink(); ?>"><?php echo $feed->get_title(); ?></a> | <?putenv("TZ=US/Pacific"); echo $item->get_date('j M Y | g:i a'); ?></p>
 
		 </div>
 
	  <?php endforeach; ?>
   <?php endif; ?>
 
   <?php
   // Let's do our paging controls
$next = (int) $start + (int) $length;
$prev = (int) $start - (int) $length;
 
// Create the NEXT link
$nextlink = '<a href="?start=' . $next . '&length=' . $length . '">Next &raquo;</a>';
   if ($next > $max)
   {
$nextlink = 'Next &raquo;';
   }
 
// Create the PREVIOUS link
$prevlink = '<a href="?start=' . $prev . '&length=' . $length . '">&laquo; Previous</a>';
   if ($prev < 0 && (int) $start > 0)
   {
$prevlink = '<a href="?start=0&length=' . $length . '">&laquo; Previous</a>';
   }
   else if ($prev < 0)
   {
$prevlink = '&laquo; Previous';
   }
 
// Normalize the numbering for humans
$begin = (int) $start + 1;
$end = ($next > $max) ? $max : $next;
?>
 
   <p>Showing <?php echo $begin; ?>&ndash;<?php echo $end; ?> out of <?php echo $max; ?> | <?php echo $prevlink; ?> | <?php echo $nextlink; ?> | <a href="<?php echo '?start=' . $start . '&length=5'; ?>">5</a>, <a href="<?php echo '?start=' . $start . '&length=10'; ?>">10</a>, or <a href="<?php echo '?start=' . $start . '&length=20'; ?>">20</a> at a time.</p>
</div>
 
</body>
</html>

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