global $db, $user_admin;
   
    // Avoid to perform the checks if them already has been done.
    if($already_checked === true){

        // Get the IF form the Author, or check if exist.
        $author = get_id_by_user($author);
        if(empty($author)) return false;
   
        settype($author,'int');

        // Check if Book exist, and if is String, get their ID.
        if(!empty($book)){
            if(is_numeric($book)) $sql_check = "SELECT `id` FROM `book_books` WHERE `id` = $book AND `author` = $author LIMIT 1";
            elseif(is_string($book)) $sql_check = "SELECT `id` FROM `book_books` WHERE `name` = '".mysql_real_escape_string($book)."' AND `author` = $author LIMIT 1";
            else return false;
            $result_check = $db->sql_query($sql_check);
            $rows_check = $db->sql_fetchrow($result_check);
            if(!empty($rows_check)) $book = $rows_check['id'];
            else return false;
       
            settype($book,'int');
        }
    }
   
   
   
    // Query for Absolute read and Filter.

    // First, We perform the SQL Query, ordering by IP and Timepstamp
    if(!empty($book)) $sql_reads = "SELECT `ip`,`timestamp`,`author` FROM `book_reads` WHERE `author` = $author AND `book` = $book ORDER BY `timestamp` DESC";
    else $sql_reads = "SELECT `ip`,`timestamp`,`author` FROM `book_reads` WHERE `author` = $author ORDER BY `timestamp` DESC";
    $result_reads = $db->sql_query($sql_reads);
    $row_reads = $db->sql_fetchrowset($result_reads);

    // Check if the result is not empty. If them, return 0 and break here.
    if(empty($row_reads)) return 0;

    // First, get the Rows and set an Array with IP and Num incrermental as Key (see bellow)
    foreach($row_reads as $row){

        // Get the variablles from Row
        $ip = $row['ip'];
        $timestamp = strtotime($row['timestamp']);
       
        // If current IP is different than the Last IP, rewind the Num Key to 0
        // (first time to itearte, Num Key is 0 by default, because Last IP is null).
        if($ip != $last_ip) $num = 0;
       
        // Don't consider the reads from Owner or Admin
        //if($author != $row['author'] || !$user_admin) $row_reads_largestring[$ip] .= strtotime($row['timestamp']).';'; // First method, CSV String
        if($author != $row['author'] || !$user_admin) $row_reads_filtered[$ip][$num] = $timestamp; // New method, Array with IP and Num as Keys
        $num++; // Increment Num Key
        $last_ip = $ip; // Set Last IP to compare to the next
    }
   
    //if(empty($row_reads_largestring)) return false; // Deprecated
    if(empty($row_reads_filtered)) return false;

    // Unset unused array
    unset($row_reads);

/* Deprecated

    // The code that I used before:

    // Here I'll re-merge the String delimited using explode() effectivelly get Arrays
    // with the Key and multiple values (the Timestamps). Unfortunadely, the last
    // value will be NULL, and this should be corrected later, in third foreach.
    foreach($row_reads_largestring as $key=>$value){
        $ip = $key;
        if(!empty($value)) $row_reads_filtered[$ip] = explode(";",$value);
    }
   
    // Unset unused array
    unset($row_reads_largestring);
*/   

    // And finally, with the Multidimensional Array give above, now I can filter and count!
    // The hardest, is create a name for Variables and write proper comments xD
    foreach($row_reads_filtered as $row){
        foreach($row as $row_filter){
            // Increment Points ONLY if the same IP loads the page upon 1 hour.
            if((($last_timestamp - $row_filter) > 3600)) $num++;
            $last_timestamp = $row_filter;
        }
    }
   
    // Unset unused array
    unset($row_reads_filtered);
   
    // :: Query for Comments
   
    // Set the SQL Query
    if(!empty($book)) $sql_comments = "SELECT `user`,`note` FROM `book_comments` WHERE `author` = $author AND `book` = $book AND `moderated` = 1 ORDER BY `timestamp` DESC";
    else $sql_comments = "SELECT `note`,`user` FROM `book_comments` WHERE `author` = $author AND `moderated` = 1 ORDER BY `timestamp` DESC";
    $result_comments = $db->sql_query($sql_comments);
    $row_comments = $db->sql_fetchrowset($result_comments);
   
    // Add the Note of Comments to the Points to get the final result (default: 2).
    foreach($row_comments as $row){
        // Don't count comments from the same Author or Admin.
        if($row['user'] != $author || !$user_admin) $num = $num + $row['note'];
    }

    // Unset unused array
    unset($row_comments);