PLEASE HELP

[Raul Berina <raul_berina_fq@xxxxxxxxx>]

<?php
/**
 *  Below are two classes, one that holds site info, and one that holds sites data.  Data is generated for you.
 *  Your task is to display this data in an informative way.
 *
 *  1.  Display the data in a table. 
 *  2.  Provide links at the top of the table to sort by id, visitors, revenue, expense, and profit.
 *          *bonus* sort the table without reloading the page using javascript or AJAX. 
 *  3.  Generate total visitors, total revenue, total expense, and total profit at end of table.
 *  4.  Provide a link that generates an XML report containing all the data in the table.
 *
 *  use $_GET or $_POST variables to pass data to the page (eg.  ?sort_by=profit or ?return=XML).
 */

class Site {
    var $id, $visitors, $revenue, $expense; 

    function Site($id = 0) {
        $this->id = $id;
        $this->visitors = rand(0,1000000);
        $this->revenue = rand(0,10000);
        $this->expense = rand(0,10000);
    }

    function displaySite() {
        $profit = $this->revenue - $this->expense;
        $html = "{$this->id}: visits={$this->visitors}, revenue={$this->revenue}, expense={$this->expense}, profit={$profit}<br>";
        return $html;
    }
}

class Data {
    var $sites;

    function Data($size = 1000) {
        $this->sites = array();
        srand(84293823);
        while($size-- != 0)
            $this->sites[] = new Site($size);
    }

    function displayData() {
        $html = "";
        foreach($this->sites as $site) $html .= $site->displaySite();
        return $html;
    }
}

$sitedata = new Data(100);
echo $sitedata->displayData();

?>



 
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