php水印程序

<?php
require_once("../dbconnect.php");
$proimagepath="photo/";
$product_id=$_POST["product_id"];
$product_pid=$_POST["product_pid"];
$product_title=$_POST["product_title"];
$product_name=$_POST["product_name"];
$product_xinghao=$_POST["product_xinghao"];
$product_yongtu=$_POST["product_yongtu"];
$product_danjia=$_POST["product_danjia"];
$product_content=mysql_escape_string($_POST["content1"]);
$product_date=date("YmdHis");
$product_smallid=$_POST["product_catename"];
$product_img=$_FILES["smallimage"];
$smalltype=$product_img["type"];
////数据验证////////////////
if($product_name=="")
{
    alert_back("产品名称不能为空！");
exit;
}
if(!$smalltype=getImgType($smalltype))
{
   alert_back("上传的图片类型不对!");
   exit;
}
///////////上传图片/////////////////
$smallimgname=$product_smallid.$product_date.".".$smalltype;
$smallimgpath=$proimagepath.$smallimgname;
if(!move_uploaded_file($product_img["tmp_name"],"../".$smallimgpath))
{
    alert_back("上传图片失败!");
exit;
}

//////////添加数据到数据库///////////////
$insertSQL="insert into product (product_title,product_name,product_xinghao,product_yongtu,product_danjia,product_img,product_content,product_date,product_smallid,product_pid) values
('$product_title','$product_name','$product_xinghao','$product_yongtu','$product_danjia','$smallimgpath','$product_content','$product_date','$product_smallid','$product_pid')";
mysql_query("SET NAMES 'gb2312'");
//echo($insertSQL);
if(mysql_query($insertSQL))
{
    alert_back("添加产品成功!");
}
else
{
    alert_back("添加产品失败!");
}
?>


在网上找的水印代码：
/*
* 功能：PHP图片水印 (水印支持图片或文字)
* 参数：
*      $product_img    背景图片，即需要加水印的图片，暂只支持GIF,JPG,PNG格式；
*      $waterPos        水印位置，有10种状态，0为随机位置；
*                        1为顶端居左，2为顶端居中，3为顶端居右；
*                        4为中部居左，5为中部居中，6为中部居右；
*                        7为底端居左，8为底端居中，9为底端居右；
*      $waterImage        图片水印，即作为水印的图片，暂只支持GIF,JPG,PNG格式；
*      $waterText        文字水印，即把文字作为为水印，支持ASCII码，不支持中文；
*      $textFont        文字大小，值为1、2、3、4或5，默认为5；
*      $textColor        文字颜色，值为十六进制颜色值，默认为#FF0000(红色)；
*
* 注意：Support GD 2.0，Support FreeType、GIF Read、GIF Create、JPG 、PNG
*      $waterImage 和 $waterText 最好不要同时使用，选其中之一即可，优先使用 $waterImage。
*      当$waterImage有效时，参数$waterString、$stringFont、$stringColor均不生效。
*      加水印后的图片的文件名和 $product_img 一样。
* 作者：longware @ 2004-11-3 14:15:13
*/
function imageWaterMark($product_img,$waterPos=0,$waterImage="",$waterText="",$textFont=5,$textColor="#FF0000")
{
    $isWaterImage = FALSE;
    $formatMsg = "暂不支持该文件格式，请用图片处理软件将图片转换为GIF、JPG、PNG格式。";
    //读取水印文件
    if(!empty($waterImage) && file_exists($waterImage))
    {
        $isWaterImage = TRUE;
        $water_info = getimagesize($waterImage);
        $water_w    = $water_info[0];//取得水印图片的宽
        $water_h    = $water_info[1];//取得水印图片的高
        switch($water_info[2])//取得水印图片的格式
        {
            case 1water_im = imagecreatefromgif($waterImage);break;
            case 2water_im = imagecreatefromjpeg($waterImage);break;
            case 3water_im = imagecreatefrompng($waterImage);break;
            default:die($formatMsg);
        }
    }
    //读取背景图片
    if(!empty($product_img) && file_exists($product_img))
    {
        $ground_info = getimagesize($product_img);
        $ground_w    = $ground_info[0];//取得背景图片的宽
        $ground_h    = $ground_info[1];//取得背景图片的高
        switch($ground_info[2])//取得背景图片的格式
        {
            case 1:$ground_im = imagecreatefromgif($product_img);break;
            case 2:$ground_im = imagecreatefromjpeg($product_img);break;
            case 3:$ground_im = imagecreatefrompng($product_img);break;
            default:die($formatMsg);
        }
    }
    else
    {
        die("需要加水印的图片不存在！");
    }
    //水印位置
    if($isWaterImage)//图片水印
    {
        $w = $water_w;
        $h = $water_h;
        $label = "图片的";
    }
    else//文字水印
    {
        $temp = imagettfbbox(ceil($textFont*2.5),0,"arial.ttf",$waterText);//取得使用 TrueType 字体的文本的范围
        $w = $temp[2] - $temp[6];
        $h = $temp[3] - $temp[7];
        unset($temp);
        $label = "文字区域";
    }
    if( ($ground_w<$w) || ($ground_h<$h) )
    {
        echo "需要加水印的图片的长度或宽度比水印".$label."还小，无法生成水印！";
        return;
    }
    switch($waterPos)
    {
        case 0://随机
            $posX = rand(0,($ground_w - $w));
            $posY = rand(0,($ground_h - $h));
            break;
        case 1://1为顶端居左
            $posX = 0;
            $posY = 0;
            break;
        case 2://2为顶端居中
            $posX = ($ground_w - $w) / 2;
            $posY = 0;
            break;
        case 3://3为顶端居右
            $posX = $ground_w - $w;
            $posY = 0;
            break;
        case 4://4为中部居左
            $posX = 0;
            $posY = ($ground_h - $h) / 2;
            break;
        case 5://5为中部居中
            $posX = ($ground_w - $w) / 2;
            $posY = ($ground_h - $h) / 2;
            break;
        case 6://6为中部居右
            $posX = $ground_w - $w;
            $posY = ($ground_h - $h) / 2;
            break;
        case 7://7为底端居左
            $posX = 0;
            $posY = $ground_h - $h;
            break;
        case 8://8为底端居中
            $posX = ($ground_w - $w) / 2;
            $posY = $ground_h - $h;
            break;
        case 9://9为底端居右
            $posX = $ground_w - $w;
            $posY = $ground_h - $h;
            break;
        default://随机
            $posX = rand(0,($ground_w - $w));
            $posY = rand(0,($ground_h - $h));
            break;     
    }
    //设定图像的混色模式
    imagealphablending($ground_im, true);
    if($isWaterImage)//图片水印
    {
        imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷贝水印到目标文件         
    }
    else//文字水印
    {
        if( !empty($textColor) && (strlen($textColor)==7) )
        {
            $R = hexdec(substr($textColor,1,2));
            $G = hexdec(substr($textColor,3,2));
            $B = hexdec(substr($textColor,5));
        }
        else
        {
            die("水印文字颜色格式不正确！");
        }
        imagestring ( $ground_im, $textFont, $posX, $posY, $waterText, imagecolorallocate($ground_im, $R, $G, $B));         
    }
    //生成水印后的图片
    @unlink($product_img);
    switch($ground_info[2])//取得背景图片的格式
    {
        case 1:imagegif($ground_im,$product_img);break;
        case 2:imagejpeg($ground_im,$product_img);break;
        case 3:imagepng($ground_im,$product_img);break;
        default:die($errorMsg);
    }
    //释放内存
    if(isset($water_info)) unset($water_info);
    if(isset($water_im)) imagedestroy($water_im);
    unset($ground_info);
    imagedestroy($ground_im);
}

//---------------------------------------------------------------------------------------
if(isset($_FILES) && !empty($_FILES['userfile']) && $_FILES['userfile']['size']>0)
{
    $uploadfile = "./".time()."_".$_FILES['userfile']['name'];
    if (copy($_FILES['userfile']['tmp_name'], $uploadfile))
    {
        echo "OK<br>";
        //文字水印
        imageWaterMark($uploadfile,0,"","http://www.hi-pwr.com",5,"#FF0000");
        //图片水印
        //$waterImage="images/bz.gif";//水印图片路径
        //imageWaterMark($uploadfile,0,$waterImage);
        echo "<img src="".$uploadfile."" border="0">";
    }
    else
    {
        echo "Fail<br>";
    }
}

php上传图片并生成缩位图代码,我们时常要上传图片,但也要保留自己的版权所以就会用到图片加水印哦,下面的程序就是上传图片成功后再给图片加上你自己做的水印效果哦.

<?php

class Image {
 var $imageResource = NULL;
 var $target = NULL;
 var $enableTypes = array();
 var $imageInfo = array();
 var $createFunc = '';
 var $imageType = NULL;
 
 /**
  * Construct for this class
  *
  * @param string $image
  * @return Image
  */
 function Image($image = NULL) {
  //get enables
  if(imagetypes() & IMG_GIF) {
   $this->enableTypes[] = 'image/gif';
  }
  if(imagetypes() & IMG_JPEG) {
   $this->enableTypes[] = 'image/jpeg';
  }
  if (imagetypes() & IMG_JPG) {
   $this->enableTypes[] = 'image/jpg';
  }
  if(imagetypes() & IMG_PNG) {
   $this->enableTypes[] = 'image/png';
  }
  //end get
  
  if($image != NULL) {
   $this->setImage($image);
  }
 }
 
 /**
  * set a image resource
  *
  * @param string $image
  * @return boolean
  */
 function setImage($image) {
  if(file_exists($image) && is_file($image)) {
   $this->imageInfo = getimagesize($image);
   $img_mime = strtolower($this->imageInfo['mime']);
   if(!in_array($img_mime, $this->enableTypes)) {
    exit('系统不能操作这种图片类型.');
   }
   switch ($img_mime) {
    case 'image/gif':
     $link = imagecreatefromgif($image);
     $this->createFunc = 'imagegif';
     $this->imageType = 'gif';
     break;
    case 'image/jpeg':
    case 'image/jpg':
     $link = imagecreatefromjpeg($image);
     $this->createFunc = 'imagejpeg';
     $this->imageType = 'jpeg';
     break;
    case 'image/png':
     $link = imagecreatefrompng($image);
     $this->createFunc = 'imagepng';
     $this->imageType = 'png';
     break;
    default:
     $link = 'unknow';
     $this->imageType = 'unknow';
     break;
   }
   if($link !== 'unknow') {
    $this->imageResource = $link;
   } else {
    exit('这种图片类型不能改变尺寸.');
   }
   unset($link);
   return true;
  } else {
   return false;
  }
 }
 
 /**
  * set header
  *
  */
 function setHeader() {
  switch ($this->imageType) {
   case 'gif':
    header('content-type:image/gif');
    break;
   case 'jpeg':
    header('content-type:image/jpeg');
    break;
   case 'png':
    header('content-type:image/png');
    break;
   default:
    exit('Can not set header.');
    break;
  }
  return true;
 }
 
 /**
  * change the image size
  *
  * @param int $width
  * @param int $height
  * @return boolean
  */
 function changeSize($width, $height = -1) {
  if(!is_resource($this->imageResource)) {
   exit('不能改变图片的尺寸,可能是你没有设置图片来源.');
  }
  $s_width = $this->imageInfo[0];
  $s_height = $this->imageInfo[1];
  $width = intval($width);
  $height = intval($height);
  
  if($width <= 0) exit('图片宽度必须大于零.');
  if($height <= 0) {
   $height = ($s_height / $s_width) * $width;
  }
  
  $this->target = imagecreatetruecolor($width, $height);
  if(@imagecopyresized($this->target, $this->imageResource, 0, 0, 0, 0, $width, $height, $s_width, $s_height))
   return true;
  else
   return false;
 }
 
 /**
  * Add watermark
  *
  * @param string $image
  * @param int $app
  */
 function addWatermark($image, $app = 50) {
  if(file_exists($image) && is_file($image)) {
   $s_info = getimagesize($image);
  } else {
   exit($image . '文件不存在.');
  }

  $r_width = $s_info[0];
  $r_height = $s_info[1];

  if($r_width > $this->imageInfo[0]) exit('水印图片必须小于目标图片');
  if($r_height > $this->imageInfo[1]) exit('水印图片必须小于目标图片');
  
  switch ($s_info['mime']) {
   case 'image/gif':
    $resource = imagecreatefromgif($image);
    break;
   case 'image/jpeg':
   case 'image/jpg':
    $resource = imagecreatefromjpeg($image);
    break;
   case 'image/png':
    $resource = imagecreatefrompng($image);
    break;
   default:
    exit($s_info['mime'] .'类型不能作为水印来源.');
    break;
  }
  
  $this->target = &$this->imageResource;
  imagecopymerge($this->target, $resource, $this->imageInfo[0] - $r_width - 5, $this->imageInfo[1] - $r_height - 5, 0,0 ,$r_width, $r_height, $app);
  imagedestroy($resource);
  unset($resource);
 }
 
 /**
  * create image
  *
  * @param string $name
  * @return boolean
  */
 function create($name = NULL) {
  $function = $this->createFunc;
  if($this->target != NULL && is_resource($this->target)) {
   if($name != NULL) {
    $function($this->target, $name);
   } else {
    $function($this->target);
   }
   return true;
  } else if($this->imageResource != NULL && is_resource($this->imageResource)) {
   if($name != NULL) {
    $function($this->imageResource, $name);
   } else {
    $function($this->imageResource);
   }
   return true;
  } else {
   exit('不能创建图片,原因可能是没有设置图片来源.');
  }
 }
 
 /**
  * free resource
  *
  */
 function free() {
  if(is_resource($this->imageResource)) {
   @imagedestroy($this->imageResource);
  }
  if(is_resource($this->target)) {
   @imagedestroy($this->target);
  }
 }
}
?>

ob_start();
$start = microtime(true);
$src = imagecreatefromjpeg($_GET["imageurl"]);
$width = imagesx($src);
$height = imagesy($src);
$dst = imagecreatetruecolor(160, 120);
imagecopyresampled($dst,$src,0,0,0,0,160,120,$width,$height);
header('Content-Type: image/jpeg');
imagejpeg($dst,'',100);
ob_end_clean();
echo microtime(true) - $start;

图片生成缩略图代码

<?php
# Constants
define("IMAGE_BASE", './');
define("MAX_WIDTH", 150);
define("MAX_HEIGHT", 150);

# Get image locationstr_replace('..', '', $_SERVER['QUERY_STRING']);
$image_file = 't.jpg';
$image_path = IMAGE_BASE . "$image_file";

# Load image
$img = null;
$ext = strtolower(end(explode('.', $image_path)));
if ($ext == 'jpg' || $ext == 'jpeg') {
     $img = imagecreatefromjpeg($image_path);
} else if ($ext == 'png') {
     $img = @imagecreatefrompng($image_path);
# Only if your version of GD includes GIF support
} else if ($ext == 'gif') {
     $img = @imagecreatefrompng($image_path);
}

# If an image was successfully loaded, test the image for size
if ($img) {

     # Get image size and scale ratio
     $width = imagesx($img);
     $height = imagesy($img);
     $scale = min(MAX_WIDTH/$width, MAX_HEIGHT/$height);

     # If the image is larger than the max shrink it
     if ($scale < 1) {
         $new_width =150; //floor($scale*$width);
         $new_height =150;// floor($scale*$height);

         # Create a new temporary image
         $tmp_img = imagecreatetruecolor($new_width, $new_height);

         # Copy and resize old image into new image
         imagecopyresized($tmp_img, $img, 0, 0, 0, 0,$new_width, $new_height, $width, $height);
         imagedestroy($img);
         $img = $tmp_img;
     }
}

# Create error image if necessary
if (!$img) {
     $img = imagecreate(MAX_WIDTH, MAX_HEIGHT);
     imagecolorallocate($img,0,0,0);
     $c = imagecolorallocate($img,70,70,70 );
     imageline($img,0,0,MAX_WIDTH,MAX_HEIGHT,$c2);
     imageline($img,MAX_WIDTH,0,0,MAX_HEIGHT,$c2);
}

# Display the image
header("Content-type: image/jpeg");
imagejpeg($img);
imagedestroy($img);
?>

php生成  曲线图 程序

<?php
/*******************用法*************************
    $gg=new build_graph();
   
    $d1=array(0,62,25,20,20,100,99);  //曲线一
//$d1=array('15'=>5,'16'=>8,'17'=>7,'18'=>9,'19'=>10,'20'=>15,'21'=>9); 改成这个形式啦
    $d2=array(0,80,75,65,100,56,79);  //曲线二
    $d3=array(0,60,50,25,12,56,45);   //曲线三 一下可以继续以此类推
   
    $gg->add_data($d1);
    $gg->add_data($d2);
    $gg->add_data($d3);
   
    $gg->set_colors("ee00ff,dd8800,00ff00"); //对应曲线的颜色
   
    //生成曲线图
    $gg->build("line",0);          //参数0表示显示所有曲线，1为显示第一条，依次类推
   
    //生成矩形图
    //$gg->build("rectangle","2");    //参数0表示显示第一个矩形，1也为显示第一条，其余依次类推
   
///////////////////////////////////////////////////////////
    //自定义图形显示，可任意图形叠加显示
       header("Content-type: image/png");
       $gg->create_cloths();          //画布
       $gg->create_frame();          //画个框先
       //$gg->build_rectangle(2);       //画矩形
       $gg->create_line();             //画线
       $gg->build_line(0);             //画曲线
       imagepng($gg->image);
       imagedestroy($gg->image);
*/
class build_graph {
    var $graphwidth=300;
    var $graphheight=300;
    var $width_num=0;                //宽分多少等分
    var $height_num=10;                //高分多少等分，默认为10
    var $height_var=0;                //高度增量（用户数据平均数）
    var $width_var=0;                //宽度增量（用户数据平均数）
    var $height_max=0;                //最大数据值
    var $array_data=array();          //用户待分析的数据的二维数组
    var $array_error=array();          //收集错误信息
    var $colorBg=array(255,255,255);    //图形背景-白色
    var $colorGrey=array(192,192,192);    //灰色画框
    var $colorBlue=array(0,0,255);       //蓝色
    var $colorRed=array(255,0,0);       //红色（点）
    var $colorDarkBlue=array(0,0,255);    //深色
    var $colorLightBlue=array(200,200,255);       //浅色
    var $array_color;                //曲线着色（存储十六进制数）
    var $image;                      //我们的图像
    //方法：接受用户数据
    function add_data($array_user_data)
    {
       if(!is_array($array_user_data) or empty($array_user_data))
       {
          $this->array_error['add_data']="没有可供分析的数据";
          return false;
          exit();
       }
      
       $i=count($this->array_data);
      
       $this->array_data[$i]=$array_user_data;
      
    }
    //方法：定义画布宽和长
    function set_img($img_width,$img_height){
       $this->graphwidth=$img_width;
       $this->graphheight=$img_height;
    }
    //设定Y轴的增量等分，默认为10份
    function set_height_num($var_y){
       $this->height_num=$var_y;
    }
    //定义各图形各部分色彩
    function get_RGB($color){             //得到十进制色彩
    $R=($color>>16) & 0xff;
    $G=($color>>8) & 0xff;
    $B=($color) & 0xff;
    return (array($R,$G,$B));
    }
    //---------------------------------------------------------------
    #定义背景色
    function set_color_bg($c1,$c2,$c3){
       $this->colorBg=array($c1,$c2,$c3);
    }
    #定义画框色
    function set_color_Grey($c1,$c2,$c3){
       $this->colorGrey=array($c1,$c2,$c3);
    }
    #定义蓝色
    function set_color_Blue($c1,$c2,$c3){
       $this->colorBlue=array($c1,$c2,$c3);
    }
    #定义色Red
    function set_color_Red($c1,$c2,$c3){
       $this->colorRed=array($c1,$c2,$c3);
    }
    #定义深色
    function set_color_DarkBlue($c1,$c2,$c3){
       $this->colorDarkBlue=array($c1,$c2,$c3);
    }
    #定义浅色
    function set_color_LightBlue($c1,$c2,$c3){
       $this->colorLightBlue=array($c1,$c2,$c3);
    }
    //---------------------------------------------------------------
    //方法:由用户数据将画布分成若干等份宽
    //并计算出每份多少像素
    function get_width_num(){
       $this->width_num=count($this->array_data[0]);
    }
   
    function get_max_height(){
       //获得用户数据的最大值
       $tmpvar=array();
         
       foreach($this->array_data as $tmp_value)
       {
          $tmpvar[]=max($tmp_value);
       }
      
       $this->height_max=max($tmpvar);
      
       return max($tmpvar);
    }
   
    function get_height_length(){
       //计算出每格的增量长度(用户数据，而不是图形的像素值)
       $max_var=$this->get_max_height();
       $max_var=round($max_var/$this->height_num);
       $first_num=substr($max_var,0,1);
       if(substr($max_var,1,1)){
          if(substr($max_var,1,1)>=5)
             $first_num+=1;
       }
       for($i=1;$i<strlen($max_var);$i++){
          $first_num.="0";
       }
       return (int)$first_num;
    }
   
    function get_var_wh()  //得到高和宽的增量
    {         
       $this->get_width_num();
       //得到高度增量和宽度增量
       $this->height_var=$this->get_height_length();
      
       $this->width_var=round($this->graphwidth/$this->width_num);
    }
    function set_colors($str_colors){
       //用于多条曲线的不同着色，如$str_colors="ee00ff,dd0000,cccccc"
       $this->array_color=split(",",$str_colors);
    }
######################################################################################################
    function build_line($var_num)
    {
       if(!empty($var_num))
       {                   //如果用户只选择显示一条曲线
          $array_tmp[0]=$this->array_data[$var_num-1];
          $this->array_data=$array_tmp;
       }
      
        //画线
        
       for($j=0;$j<count($this->array_data);$j++)
       {
          list($R,$G,$B)=$this->get_RGB(hexdec($this->array_color[$j]));
         
          $colorBlue=imagecolorallocate($this->image,$R,$G,$B);
         
            $i=0;
              foreach($this->array_data[$j] as $keys=>$values)
            {
                $height_next_pix[]=round($this->array_data[$j][$keys]/$this->height_max*$this->graphheight);
            }
           
            foreach($this->array_data[$j] as $key=>$value)
            {
                $height_pix=round(($this->array_data[$j][$key]/$this->height_max)*$this->graphheight);
               
                if($i!=count($this->array_data[$j])-1)
                {
                    imageline($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight-$height_next_pix[$i+1],$colorBlue);
                }
               
                $i++;
            }
        
        //print_r($height_next_pix);
        // exit;
         /*
          for($i=0;$i<$this->width_num-1;$i++)
          {
             $height_pix=round(($this->array_data[$j][$i]/$this->height_max)*$this->graphheight);
             $height_next_pix=round($this->array_data[$j][$i+1]/$this->height_max*$this->graphheight);
             imageline($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight-$height_next_pix,$colorBlue);
          }*/
       }
      
      
       //画点
      
       $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);
       for($j=0;$j<count($this->array_data);$j++)
       {
               $i=0;
            foreach($this->array_data[$j] as $key=>$value)
            {
                 $height_pix=round(($this->array_data[$j][$key]/$this->height_max)*$this->graphheight);
                 imagearc($this->image,$this->width_var*$i,$this->graphheight-$height_pix,6,5,0,360,$colorRed);
                 imagefilltoborder($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$colorRed,$colorRed);
                 $i++;
            }
       
        /*
          for($i=0;$i<$this->width_num;$i++)
          {
             $height_pix=round(($this->array_data[$j][$i]/$this->height_max)*$this->graphheight);
             imagearc($this->image,$this->width_var*$i,$this->graphheight-$height_pix,6,5,0,360,$colorRed);
             imagefilltoborder($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$colorRed,$colorRed);
          }
         */
       }
      
    }
######################################################################################################
    function build_rectangle($select_gra){
       if(!empty($select_gra)){                   //用户选择显示一个矩形
          $select_gra-=1;
       }
       //画矩形
       //配色
       $colorDarkBlue=imagecolorallocate($this->image, $this->colorDarkBlue[0], $this->colorDarkBlue[1], $this->colorDarkBlue[2]);
       $colorLightBlue=imagecolorallocate($this->image, $this->colorLightBlue[0], $this->colorLightBlue[1], $this->colorLightBlue[2]);
       if(empty($select_gra))
          $select_gra=0;
       for($i=0; $i<$this->width_num; $i++){
          $height_pix=round(($this->array_data[$select_gra][$i]/$this->height_max)*$this->graphheight);
          imagefilledrectangle($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight, $colorDarkBlue);
          imagefilledrectangle($this->image,($i*$this->width_var)+1,($this->graphheight-$height_pix)+1,$this->width_var*($i+1)-5,$this->graphheight-2, $colorLightBlue);
       }
    }
######################################################################################################
    function create_cloths(){
       //创建画布
       $this->image=imagecreate($this->graphwidth+20,$this->graphheight+20);
    }
    function create_frame(){
       //创建画框
       $this->get_var_wh();
       //配色
       $colorBg=imagecolorallocate($this->image, $this->colorBg[0], $this->colorBg[1], $this->colorBg[2]);
       $colorGrey=imagecolorallocate($this->image, $this->colorGrey[0], $this->colorGrey[1], $this->colorGrey[2]);
       //创建图像周围的框
       imageline($this->image, 0, 0, 0, $this->graphheight,$colorGrey);
       imageline($this->image, 0, 0, $this->graphwidth, 0,$colorGrey);
       imageline($this->image, ($this->graphwidth-1),0,($this->graphwidth-1),($this->graphheight-1),$colorGrey);
       imageline($this->image, 0,($this->graphheight-1),($this->graphwidth-1),($this->graphheight-1),$colorGrey);
    }
   
    function create_line()
    {
       //创建网格。
       $this->get_var_wh();
       $colorBg=imagecolorallocate($this->image, $this->colorBg[0], $this->colorBg[1], $this->colorBg[2]);
       $colorGrey=imagecolorallocate($this->image, $this->colorGrey[0], $this->colorGrey[1], $this->colorGrey[2]);
       $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);
      
       for($i=1;$i<=$this->height_num;$i++)
       {
          //画横线
          $y1=($this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i);
         
          $y2=($this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i);
         
          imageline($this->image,0,$y1,$this->graphwidth,$y2,$colorGrey);
         
          //标出数字
          imagestring($this->image,2,0,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$this->height_var*$i,$colorRed);
       }
      
       unset($i);
      
       foreach($this->array_data[0] as $key=>$value)
       {
              //画竖线
              imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);
         
          //标出数字
           imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$key,$colorRed);
          
           $i++;
       }
      
       /*
       for($i=1;$i<=$this->width_num;$i++)
       {
          //画竖线
          imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);
          //标出数字
          imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$i,$colorRed);
       }
       */
    }
    function build($graph,$str_var){
       //$graph是用户指定的图形种类,$str_var是生成哪个数据的图
       header("Content-type: image/jpeg");
       $this->create_cloths();          //先要有画布啊~~
       switch ($graph){
          case "line":
             $this->create_frame();          //画个框先：）
             $this->create_line();          //打上底格线
             $this->build_line($str_var);          //画曲线
             break;
          case "rectangle":
             $this->create_frame();                   //画个框先：）
             $this->build_rectangle($str_var);          //画矩形
             $this->create_line();                   //打上底格线
             break;
       }
       //输出图形并清除内存
       imagepng($this->image);
       imagedestroy($this->image);
    }
}
?>