Rating in PHP using IP Address


<script src="jquery.js" type="text/javascript"></script>
<link rel="stylesheet" href="rating.css" />
<script type="text/javascript" src="rating.js"></script>
        $rating_tableName     = 'ratings';
 $q="SELECT total_votes, total_value FROM $rating_tableName WHERE id=$id";
if(!$r) echo mysql_error();
echo'<div class="product">
           Rate Item '.$j.'
            <div id="rating_'.$id.'" class="ratings">';
                    if($rat+0.5>$k)$class="star_".$k."  ratings_stars ratings_vote";
                    else $class="star_".$k." ratings_stars ratings_blank";
                    echo '<div class="'.$class.'"></div>';
                echo' <div class="total_votes"><p class="voted"> Rating: <strong>'.@number_format($rat).'</strong>/5 ('.$v. '  vote(s) cast) 


header("Cache-Control: no-cache");
header("Pragma: nocache");
$id_sent = preg_replace("/[^0-9]/","",$_REQUEST['id']);
$vote_sent = preg_replace("/[^0-9]/","",$_REQUEST['stars']);
$q=mysql_num_rows(mysql_query("select id from ratings where id=$id_sent"));
if(!$q)mysql_query("insert into ratings (id,date) values ($id_sent,curdate())");
if ($vote_sent > $units) die("Sorry, vote appears to be invalid."); // kill the script because normal users will never see this.

//connecting to the database to get some information
$query = mysql_query("SELECT total_votes, total_value, used_ips FROM $rating_dbname.$rating_tableName WHERE id='$id_sent' ")or die(" Error: ".mysql_error());
$numbers = mysql_fetch_assoc($query);
$checkIP = unserialize($numbers['used_ips']);
$count = $numbers['total_votes']; //how many votes total
$current_rating = $numbers['total_value']; //total number of rating added together and stored
$sum = $vote_sent+$current_rating; // add together the current vote value and the total vote value
$tense = ($count==1) ? "vote" : "votes"; //plural form votes/vote

// checking to see if the first vote has been tallied
// or increment the current number of votes
($sum==0 ? $added=0 : $added=$count+1);

// if it is an array i.e. already has entries the push in another value
((is_array($checkIP)) ? array_push($checkIP,$ip) : $checkIP=array($ip));

//IP check when voting
$voted=mysql_num_rows(mysql_query("SELECT used_ips FROM $rating_dbname.$rating_tableName WHERE used_ips LIKE '%".$ip."%' AND id='".$id_sent."' "));
else $voted=1;                                  
if(!$voted) {     //if the user hasn't yet voted, then vote normally...

    if (($vote_sent >= 1 && $vote_sent <= $units)) { // keep votes within range, make sure IP matches 
        $update = "UPDATE $rating_tableName SET total_votes='".$added."', total_value='".$sum."', used_ips='".$insertip."' WHERE id='$id_sent'";
        $result = mysql_query($update); 
        if($result) setcookie("rating_".$id_sent,1, time()+ 2592000);
} //end for the "if(!$voted)"
// these are new queries to get the new values!
$newtotals = mysql_query("SELECT total_votes, total_value, used_ips FROM $rating_tableName WHERE id='$id_sent' ")or die(" Error: ".mysql_error());
$numbers = mysql_fetch_assoc($newtotals);
$count = $numbers['total_votes'];//how many votes total
$current_rating = $numbers['total_value'];//total number of rating added together and stored
$tense = ($count==1) ? "vote" : "votes"; //plural form votes/vote

// $new_back is what gets 'drawn' on your page after a successful 'AJAX/Javascript' vote
if($voted){$sum=$current_rating; $added=$count;}
$new_back = array();
    if($i<@number_format($current_rating/$count,1)-0.5) $class="ratings_stars ratings_vote";
    else $class="ratings_stars";
$new_back[] .= '<div class="star_'.$j.' '.$class.'"></div>';

$new_back[] .= ' <div class="total_votes"><p class="voted"> Rating: <strong>'.@number_format($sum/$added,1).'</strong>/'.$units.' ('.$count.' '.$tense.' cast) ';
if(!$voted)$new_back[] .= '<span class="thanks">Thanks for voting!</span></p>';
else {$new_back[] .= '<span class="invalid">Already voted for this item</span></p></div>';}
$allnewback = join("\n", $new_back);

// ========================

$output = $allnewback;
echo $output;


$rating_tableName     = 'ratings';
$rating_unitwidth     = 15;
$rating_dbname        = 'mr';
function connect(){
 $rating_dbname= 'mr';

$con = mysql_connect($host,$uname,$pass);

if (!$con)
  die('Could not connect: ' . mysql_error());
mysql_select_db($rating_dbname, $con);}

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