Tweet
<?php
//*****************************************************************
// CONCEPT-BR TOOL FOR ADDING CANONICIAL TAG IN JOOMLA 1.5 to 2.5
// VERSION: 0.2.3
// DATE: 02/2013
// CREATOR: JR
// ****************************************************************
// ****************************************************************
// SETTINGS SECTION
// ****************************************************************
$force_http_base = true; // set this to "true" will set canonical url starts with "http://...."
// ****************************************************************
// CODE - DON'T CHANGE ANYTHING FROM HERE !!!!
// ****************************************************************
// ensure helper
// =============
if(!class_exists('ContentHelperRoute')) require_once (JPATH_SITE . '/components/com_content/helpers/route.php');
// get base url
// ============
$protocol = strpos(strtolower($_SERVER['SERVER_PROTOCOL']),'https') === FALSE ? 'http' : 'https';
if($force_http_base) $protocol = "http";
$base_url = $protocol."://".$_SERVER['HTTP_HOST']; // comment this line out to force HTTP
// check if root path or no article (e.g. any extension is loaded) => nothing to do
// ====================================================
$url_parts = parse_url($_SERVER['REQUEST_URI']);
$clean_uri = $url_parts['path'];
if (strpos($clean_uri, "?") !== false) $clean_uri = reset(explode("?", $clean_uri));
// get current article id
$article_id = JRequest::getVar('id');
$view = JRequest::getVar('view');
if($clean_uri != "" && $article_id > 0 && $view == 'article')
{
// get current menu url for canonical meta tag creation
// ====================================================
// get url for article
$link = JRoute::_(ContentHelperRoute::getArticleRoute($article_id, 0));
// set value
$canonical_value = $base_url.$link;
}
else if($clean_uri != "" && $article_id > 0 && $view == 'category')
{
// get current menu url for canonical meta tag creation
// ====================================================
// get url for category
$link = JRoute::_(ContentHelperRoute::getCategoryRoute($article_id, 0));
// set value
$canonical_value = $base_url.$link;
}
else if($clean_uri == "")
{
// root dir => nothing to do. set base url
$canonical_value = $base_url;
}
else
{
//unknown state
$canonical_value = "";
}
if($canonical_value != "")
{
echo "here";
?>
<!--canonical tag-->
<link rel="canonical" href="<?php echo($canonical_value); ?>" />
<?php
}
?>
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