File Source for freqmatrix.php

<?php
//require_once('libdb.php');
//require_once('libtree.php');
class freqMatrix extends phpusertrack_db {
var $_matrix = null;
var $site_id;
function freqMatrix($site_id = null) {
$this->site_id = $site_id;
$this->build();
}
function build() {
$sql = 'Select phpusertrack_data.path, phpusertrack_ip.session_id From phpusertrack_data Inner Join phpusertrack_ip ON phpusertrack_data.ip_id = phpusertrack_ip.id
Where phpusertrack_data.site_id = \'' . $this->site_id . '\' Order By phpusertrack_ip.ip Asc, phpusertrack_data.`timestamp` Asc';
$sessions = $this->_query($sql);
if (@include_once('Structures/Graph.php')) {
$directedGraph =& new Structures_Graph(true);
foreach ($sessions as $session) {
if ((isset($oldNode)) && ($oldNode->getData() == $session['path'])) {
$newNode = $oldNode;
$newNode->setMetadata('freq', $newNode->getMetadata('freq')+1);
} else {
$newNode =& new Structures_Graph_Node();
$newNode->setData($session['path']);
$newNode->setMetadata('freq', 1);
$directedGraph->addNode(&$newNode);
if ($session['session_id'] == $oldSessID) {
$oldNode->connectTo($newNode);
}
}
$oldSessID = $session['session_id'];
$oldNode = $newNode;
}
$this->_matrix = $directedGraph;
} else {
global $smarty;
$smarty->assign('notifMsg', 'Structures Graph package not installed. Fix with \'<code>pear install Structures_Graph</code>\'');
return false;
}
}
function getMatrix() {
return $this->_matrix;
}
}
?>

Source for file freqmatrix.php