[gd library] Bezoekers teller, grafisch

<?php
################################################################################
#     *  Name: Josko de Boer                                                   #
#     *  E-mail: [email protected]                                         #
#     *  country: The Netherlands                                              #
#     *  company: ZcHosting                                                    #
#     *  language: Php + Mysql                                                 #
#     *  using gd libaries                                                     #
################################################################################
function QArrayRGB($Col)
{
      $result = array();
      $result[] = hexdec($Col{1}.$Col{2});
      $result[] = hexdec($Col{3}.$Col{4});
      $result[] = hexdec($Col{5}.$Col{6});
      return $result;
}
//---- function for getting heights  ---//
function Height($number, $max, $xCall)
{

      //-- count visits ---//
      $x = $number;
      //-- people each px -- //
      
      $Px = $max / $xCall;
      //--- height ---//
      $H = $x / $Px;
      
      return round($H, 0);
}
//---- the class for the counter ---------//
class QCounter
{
      //---- database vars ---------//
      var $host;
      var $user;
      var $password;
      var $db;
      //---- current date, timestamp on 12:00:00 ---------//
      var $date;
      //---- sizes ---------//
      var $x;
      var $y;
      //---- Colors ---------//
      var $bgcolor;
      var $fontcolor;
      var $linecolor;
      var $commentcolor;
      var $indexcolor;
      //---- constructor ---------//
      function __construct()
      {
            if(func_num_args() == 0) exit("You <b> must</b> give a load of vars for this.<br \>\n You still are to do that.");
            //---- autoloading some static vars ---------//
            $this->host     = func_get_arg(0);
            $this->user     = func_get_arg(1);
            $this->password = func_get_arg(2);
            $this->db       = func_get_arg(3);
            
            $this->date = mktime(
                        0,
                        0,
                        0,
                        date("m"),
                        date("d"),
                        date("y")
            );
            

            $this->bgcolor      = func_get_arg(4);
            $this->fontcolor    = func_get_arg(5);
            $this->linecolor    = func_get_arg(6);
            $this->commentcolor = func_get_arg(7);
            $this->indexcolor   = func_get_arg(8);
            
            $this->bgcolor      = QArrayRGB( $this->bgcolor);
            $this->fontcolor    = QArrayRGB( $this->fontcolor);
            $this->linecolor    = QArrayRGB( $this->linecolor);
            $this->commentcolor = QArrayRGB( $this->commentcolor);
            $this->indexcolor   = QArrayRGB( $this->indexcolor);
            

            $this->x = func_get_arg(9);
            $this->y   = func_get_arg(10);
            
            //---- calling functions ----------//
            $this->__connect();
            $Verification = $this->__logger();
            if( $Verification)
            {
                  $this->__image();
            }
      
      }
      //---- connection ---------//
      function __connect()
      {
            mysql_connect($this->host, $this->user, $this->password) or die(mysql_error());
            mysql_select_db($this->db)         or die(mysql_error());
      }
      //---- add record ---------//
      function __logger()
      {
            $ip = $_SERVER['REMOTE_ADDR'];
            
            $sql = "SELECT * FROM count WHERE time='".$this->date."' AND ip='".$ip."'";

            $query = mysql_query($sql) or die(mysql_error());

            $result = mysql_num_rows($query);

            if($result == 0)
            {

                  $sql = "INSERT INTO count (time, ip) VALUES ('".$this->date."', '".$ip."')";
                  mysql_query($sql) or die(mysql_error());
                  return false;
            }
            else
            {
                  return true;
            }
      }
      //----- This is the main function, giving the image ---- //
      function __image()
      {
            $ImagePng = imagecreate($this->x, $this->y);
            $error = false;

            //--- allocating colors -----//

            $this->bgcolor      = imagecolorallocate(
                                    $ImagePng,
                                    $this->bgcolor[0],
                                    $this->bgcolor[1],
                                    $this->bgcolor[2]
                                    );

            $this->fontcolor    = imagecolorallocate(
                                    $ImagePng,
                                    $this->fontcolor[0],
                                    $this->fontcolor[1],
                                    $this->fontcolor[2]
                                    );
            
            $this->linecolor    = imagecolorallocate(
                                    $ImagePng,
                                    $this->linecolor[0],
                                    $this->linecolor[1],
                                    $this->linecolor[2]
                                    );
            
            $this->commentcolor = imagecolorallocate(
                                    $ImagePng,
                                    $this->commentcolor[0],
                                    $this->commentcolor[1],
                                    $this->commentcolor[2]
                                    );
            
            $this->indexcolor   = imagecolorallocate(
                                    $ImagePng,
                                    $this->indexcolor[0],
                                    $this->indexcolor[1],
                                    $this->indexcolor[2]
                                    );
            if($_GET['tryout'] == "true")
            {
                  $max = rand( 100, 10000);
                  $logs = array(
                        rand(10, $max),
                        rand(10, $max),
                        rand(10, $max),
                        rand(10, $max),
                        rand(10, $max),
                        rand(10, $max),
                        rand(10, $max)
                        );
            }
            else
            {
                  $logs = $this->__load();
            }
            
            $xCall = ($this->x-50) / count($logs);
            
            $yCall = ($this->y-50);
            
            $PeopleStripe = max($logs) / 20;

            $yStripe = $yCall / 20;
            
            $xStripe = 5;
            

            
            for($a = 0; $a <= 20; $a++)
            {
                  $cury = $a * $yStripe + 45;
                  imageline($ImagePng, 5, $cury, 5+$xStripe, $cury, $this->indexcolor);

                  $number = (20*$PeopleStripe)-($a*$PeopleStripe);

                  imagestring($ImagePng, 100, 15, $cury-5, round($number, 0), $this->commentcolor);
            }
            
            imageline($ImagePng, 50, 0, 50, $this->y, $this->indexcolor);
            
            $iterance = 0;
            foreach($logs AS $visit)
            {

                  $iterance++;

                  $xCur = 55 + ( $iterance - 1) * $xCall;



                  //--- drawing line ---//

                  $yCur = $this->y - Height($visit, max($logs), $yCall);

                  $yNext = $this->y - Height($logs[$iterance], max($logs), $yCall);

                  $xNext = $xCur + $xCall;

                if($iterance != 7)
                        imageline($ImagePng, $xCur, $yCur, $xNext, $yNext, $this->linecolor);
                 //----- text -----/

                        imagestring($ImagePng, 100, $xCur, 15, $visit, $this->fontcolor);
                        imagestring($ImagePng, 100, $xCur, 35, $iterance, $this->fontcolor);
            }

            header("Content-type: image/png");
            imagepng($ImagePng);
            imagedestroy($ImagePng);

      
      }
      function __load()
      {
            $array = array();
            for($a = 0; $a < 7; $a++)
            {
                  $ddate = $this->date;
                  $ddate -= $a * 60 * 60 * 24;
                  $query = mysql_query("SELECT * FROM count WHERE time='".$ddate."'") or die(mysql_error());
                  $array[] = mysql_num_rows($query);
            }

            return $array;
      }
}
?>