初次写类，生成略缩图和水印图的类，望大家批评，修改
时间：2009-04-17
来源：互联网
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<?php
class WaterAndSmallImg
{
public $im; //图片资源
public $Owidht;
public $Oheight;
public $firstFolder;
public $monthFolder;
public $waterFolder;
public $goodsFolder;
public $allowType;
//public $creatImgType; //上传的图片类型
function __construct($firstFolder="images")
{
$this->firstFolder=$firstFolder;
$this->monthFolder=$this->firstFolder.'/'.date("Ym");
$this->waterFolder=$this->monthFolder.'/'."water_img";
$this->goodsFolder=$this->monthFolder.'/'."goods_img";
$this->CreateFolder($this->firstFolder); //建立文件夹
$this->CreateFolder($this->monthFolder); //建立月份文件夹
$this->allowType = "gif/jpg/jpeg/png"; // 允许上传的文件类型
}
//获得要处理的图片的资源
function createimg($oimg)
{
$img= GetImageSize($oimg);
switch($img['2'])
{
case 1:
$this->im [email==@ImageCreateFromGIF($oimg]=@ImageCreateFromGIF($oimg[/email]);
break;
case 2:
$this->im [email==@ImageCreateFromJPEG($oimg]=@ImageCreateFromJPEG($oimg[/email]);
break;
case 3:
$this->im [email==@ImageCreateFromPNG($oimg]=@ImageCreateFromPNG($oimg[/email]);
break;
}
if(!$this->im)
{
return false;
}
else
{
$this->Owidth=ImageSX($this->im); // 取得原图宽度;
$this->Oheight=ImageSY($this->im); // 取得原图高度;
}
}
// 创建文件夹
function CreateFolder($foldername)
{
if(!is_dir($foldername))
{
mkdir("$foldername");
}
}
// 获得图片类型
function createImgType($oimg)
{
$fleth = explode(".",$oimg);
$imgType = $fleth[(int)count($fleth)-1]; // 获取文件后缀;
return $imgType;
}
//创建图片新名称
function createNewImgName($oimg)
{
$newName = date('YmdHis') .mt_rand(0, 99999). "." .$this->createImgType($oimg); // 创建新文件名;
return $newName;
}
//检查文件类型是否合格
function chk_ImgType($oimg)
{
$iwTrue = 0;
$fle = explode("/",$this->allowType);
for($i=0; $i < count($fle); $i++)
{
if( $this->createImgType($oimg) == $fle[$i] )
{
$iwTrue = (int) $iwTrue + 1;
}
}
if( $iwTrue == 0 )
{
$this->msg("文件不符合 ".$this->allowType." 格式!");
}
}
// 提示错误信息并终止操作
function msg($Error)
{
echo "<script language=\"javascript\">\n";
echo " alert('".$Error."');\n";
echo " window.history.back();\n";
echo "</script>\n";
die();
}
//水印图
function waterImg($oimg,$water="logo.gif",$place="4",$toumindu="75%")
{
//获得水印图片的资源
$data = GetImageSize($water);
switch($data[2])
{
case 1:
$wimg = @ImageCreateFromGIF($water);
break;
case 2:
$wimg = @ImageCreateFromJPEG($water);
break;
case 3:
$wimg = @ImageCreateFromPNG($water);
break;
}
$wsrcW=ImageSX($wimg); //水印图片的宽
$wsrcH=ImageSY($wimg); //水印图片的高
switch($place)
{
case 0:
$x=$this->Owidth/2-$wsrcW/2;
$y=$this->Oheight/2-$wsrcH/2;
break;
case 1:
$x=0;
$y=0;
break;
case 2:
$x=$this->Owidth-$wsrcW;
$y=0;
break;
case 3:
$x=0;
$y=$this->Oheight-$wsrcH;
break;
case 4:
$x=$this->Owidth-$wsrcW;
$y=$this->Oheight-$wsrcH;
break;
}
$this->CreateFolder($this->waterFolder); //创建放水印图片的文件夹
$waterNewName=$this->waterFolder.'/'.$this->createNewImgName($oimg);
imagecopymerge($this->im,$wimg,$x,$y,0,0,$wsrcW,$wsrcH,$toumindu);
ImageJpeg($this->im,$waterNewName);
imagedestroy($this->im);
if(file_exists($waterNewName))
{
return $waterNewName;
}
else
{
$this->msg("水印生成失败!");
}
}
//缩略图
function smallImg($oimg,$small_width,$small_height=0,$rate=100)
{
$dstX=0;
$dstY=0;
if($small_height==0)
{
$small_height = $small_width/$this->Owidth*$this->Oheight;
}
if ($this->Owidht*$small_height > $this->Oheight*$small_width)
{
$fsmall_height = round($this->Oheight*$small_width/$this->Owidth);
$dstY = floor(($small_height-$fsmall_height)/2);
$fsmall_width = $small_width;
}
else
{
$fsmall_width = round($this->Owidth*$small_height/$this->Oheight);
$dstX = floor(($small_width-$fsmall_width)/2);
$fsmall_height = $small_height;
}
$dstX = ($dstX<0)?0:$dstX;
$dstY = ($dstX<0)?0:$dstY;
$dstX = ($dstX>($small_width/2))?floor($small_width/2):$dstX;
$dstY = ($dstY>($small_height/2))?floor($small_height/s):$dstY;
$this->CreateFolder($this->goodsFolder); //创建放水印图片的文件夹
$goodsNewName=$this->goodsFolder.'/'.$this->createNewImgName($oimg);
$ni = ImageCreateTrueColor($fsmall_width,$fsmall_height);
imagecopyresampled($ni,$this->im,$dstX,$dstY,0,0,$fsmall_width,$fsmall_height,$this->Owidth,$this->Oheight);
ImageJpeg($ni,$goodsNewName,$rate); // 生成缩略图;
imagedestroy($this->im); // imagedestroy(resource) 释放image关联的内存
}
//生成图片
function getImg($oimg,$small_width,$dis=0,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%")
{
$this->chk_ImgType($oimg);
$this->createimg($oimg);
switch($dis)
{
case 0:
$this->smallImg($oimg,$small_width,$small_height=0,$rate=100);
break;
case 1:
$woi=$this->waterimg($oimg,$water="logo.gif",$place="4",$toumindu="75%");
$this->chk_ImgType($woi);
$this->createimg($woi);
$this->smallImg($woi,$small_width,$small_height=0,$rate=100);
break;
}
}
}
class Upimg extends WaterAndSmallImg
{
public $bigFolder; //保存上传图片的文件夹
public $maxSize; // 文件大小 500KB
function __construct($firstFolder="images")
{
parent:: __construct( $firstFolder="images");
$this->bigFolder=$this->monthFolder.'/'."big_img";
$this->maxSize = 200*1024; //图片大小
}
// 检测文件大小
function chk_fileSize($imgSize)
{
if( $imgSize > $this->maxSize )
{
parent::msg("目标文件不能大于". $this->maxSize/1024 ." KB");
}
}
//保存上传文件
function savefile($imgName,$imgSize,$upImg)
{
parent::chk_ImgType($imgName);
$this->chk_fileSize($imgSize);
return $this->chk_savefile($imgName,$upImg);
}
// 检测上传结果是否成功
function chk_savefile($imgName,$upImg)
{
parent::CreateFolder($this->bigFolder); //创建放图片的文件夹
$bigNewName=$this->bigFolder.'/'.parent::createNewImgName($imgName);
$copymsg = move_uploaded_file($upImg,$bigNewName);
if( $copymsg )
{
return $bigNewName;
}
else
{
parent::msg("文件上传失败! \n\n请重新上传! ");
}
}
//上传并生成缩略图
function saveAllImg($imgName,$imgSize,$upImg,$small_width,$dis=0,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%")
{
$orImg=$this->savefile($imgName,$imgSize,$upImg);
parent::getImg($orImg,$small_width,$dis,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%");
}
}
//实例
/*********************************/
//单个图片上传
if($_FILES['poto']['tmp_name']!='')
{
$upImg=$_FILES['poto']['tmp_name'];
$imgName = $_FILES['poto']['name']; //获取上传的文件名
$imgSize = $_FILES['poto']['size']; //获取上传的文件大小（字节）
$getUpimg=new Upimg($firstFolder="images");
$getUpimg->saveAllImg($imgName,$imgSize,$upImg,400,1,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%");
}
/*********************************/
?>
<!--单个图片上传实例表单-->
<form action="" method="POST" enctype="multipart/form-data">
选择上传图片：<input type="file" name="poto">
<input type="submit" value="上传" name="submit">
</form>
<!---->
</body>
</html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<?php
class WaterAndSmallImg
{
public $im; //图片资源
public $Owidht;
public $Oheight;
public $firstFolder;
public $monthFolder;
public $waterFolder;
public $goodsFolder;
public $allowType;
//public $creatImgType; //上传的图片类型
function __construct($firstFolder="images")
{
$this->firstFolder=$firstFolder;
$this->monthFolder=$this->firstFolder.'/'.date("Ym");
$this->waterFolder=$this->monthFolder.'/'."water_img";
$this->goodsFolder=$this->monthFolder.'/'."goods_img";
$this->CreateFolder($this->firstFolder); //建立文件夹
$this->CreateFolder($this->monthFolder); //建立月份文件夹
$this->allowType = "gif/jpg/jpeg/png"; // 允许上传的文件类型
}
//获得要处理的图片的资源
function createimg($oimg)
{
$img= GetImageSize($oimg);
switch($img['2'])
{
case 1:
$this->im [email==@ImageCreateFromGIF($oimg]=@ImageCreateFromGIF($oimg[/email]);
break;
case 2:
$this->im [email==@ImageCreateFromJPEG($oimg]=@ImageCreateFromJPEG($oimg[/email]);
break;
case 3:
$this->im [email==@ImageCreateFromPNG($oimg]=@ImageCreateFromPNG($oimg[/email]);
break;
}
if(!$this->im)
{
return false;
}
else
{
$this->Owidth=ImageSX($this->im); // 取得原图宽度;
$this->Oheight=ImageSY($this->im); // 取得原图高度;
}
}
// 创建文件夹
function CreateFolder($foldername)
{
if(!is_dir($foldername))
{
mkdir("$foldername");
}
}
// 获得图片类型
function createImgType($oimg)
{
$fleth = explode(".",$oimg);
$imgType = $fleth[(int)count($fleth)-1]; // 获取文件后缀;
return $imgType;
}
//创建图片新名称
function createNewImgName($oimg)
{
$newName = date('YmdHis') .mt_rand(0, 99999). "." .$this->createImgType($oimg); // 创建新文件名;
return $newName;
}
//检查文件类型是否合格
function chk_ImgType($oimg)
{
$iwTrue = 0;
$fle = explode("/",$this->allowType);
for($i=0; $i < count($fle); $i++)
{
if( $this->createImgType($oimg) == $fle[$i] )
{
$iwTrue = (int) $iwTrue + 1;
}
}
if( $iwTrue == 0 )
{
$this->msg("文件不符合 ".$this->allowType." 格式!");
}
}
// 提示错误信息并终止操作
function msg($Error)
{
echo "<script language=\"javascript\">\n";
echo " alert('".$Error."');\n";
echo " window.history.back();\n";
echo "</script>\n";
die();
}
//水印图
function waterImg($oimg,$water="logo.gif",$place="4",$toumindu="75%")
{
//获得水印图片的资源
$data = GetImageSize($water);
switch($data[2])
{
case 1:
$wimg = @ImageCreateFromGIF($water);
break;
case 2:
$wimg = @ImageCreateFromJPEG($water);
break;
case 3:
$wimg = @ImageCreateFromPNG($water);
break;
}
$wsrcW=ImageSX($wimg); //水印图片的宽
$wsrcH=ImageSY($wimg); //水印图片的高
switch($place)
{
case 0:
$x=$this->Owidth/2-$wsrcW/2;
$y=$this->Oheight/2-$wsrcH/2;
break;
case 1:
$x=0;
$y=0;
break;
case 2:
$x=$this->Owidth-$wsrcW;
$y=0;
break;
case 3:
$x=0;
$y=$this->Oheight-$wsrcH;
break;
case 4:
$x=$this->Owidth-$wsrcW;
$y=$this->Oheight-$wsrcH;
break;
}
$this->CreateFolder($this->waterFolder); //创建放水印图片的文件夹
$waterNewName=$this->waterFolder.'/'.$this->createNewImgName($oimg);
imagecopymerge($this->im,$wimg,$x,$y,0,0,$wsrcW,$wsrcH,$toumindu);
ImageJpeg($this->im,$waterNewName);
imagedestroy($this->im);
if(file_exists($waterNewName))
{
return $waterNewName;
}
else
{
$this->msg("水印生成失败!");
}
}
//缩略图
function smallImg($oimg,$small_width,$small_height=0,$rate=100)
{
$dstX=0;
$dstY=0;
if($small_height==0)
{
$small_height = $small_width/$this->Owidth*$this->Oheight;
}
if ($this->Owidht*$small_height > $this->Oheight*$small_width)
{
$fsmall_height = round($this->Oheight*$small_width/$this->Owidth);
$dstY = floor(($small_height-$fsmall_height)/2);
$fsmall_width = $small_width;
}
else
{
$fsmall_width = round($this->Owidth*$small_height/$this->Oheight);
$dstX = floor(($small_width-$fsmall_width)/2);
$fsmall_height = $small_height;
}
$dstX = ($dstX<0)?0:$dstX;
$dstY = ($dstX<0)?0:$dstY;
$dstX = ($dstX>($small_width/2))?floor($small_width/2):$dstX;
$dstY = ($dstY>($small_height/2))?floor($small_height/s):$dstY;
$this->CreateFolder($this->goodsFolder); //创建放水印图片的文件夹
$goodsNewName=$this->goodsFolder.'/'.$this->createNewImgName($oimg);
$ni = ImageCreateTrueColor($fsmall_width,$fsmall_height);
imagecopyresampled($ni,$this->im,$dstX,$dstY,0,0,$fsmall_width,$fsmall_height,$this->Owidth,$this->Oheight);
ImageJpeg($ni,$goodsNewName,$rate); // 生成缩略图;
imagedestroy($this->im); // imagedestroy(resource) 释放image关联的内存
}
//生成图片
function getImg($oimg,$small_width,$dis=0,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%")
{
$this->chk_ImgType($oimg);
$this->createimg($oimg);
switch($dis)
{
case 0:
$this->smallImg($oimg,$small_width,$small_height=0,$rate=100);
break;
case 1:
$woi=$this->waterimg($oimg,$water="logo.gif",$place="4",$toumindu="75%");
$this->chk_ImgType($woi);
$this->createimg($woi);
$this->smallImg($woi,$small_width,$small_height=0,$rate=100);
break;
}
}
}
class Upimg extends WaterAndSmallImg
{
public $bigFolder; //保存上传图片的文件夹
public $maxSize; // 文件大小 500KB
function __construct($firstFolder="images")
{
parent:: __construct( $firstFolder="images");
$this->bigFolder=$this->monthFolder.'/'."big_img";
$this->maxSize = 200*1024; //图片大小
}
// 检测文件大小
function chk_fileSize($imgSize)
{
if( $imgSize > $this->maxSize )
{
parent::msg("目标文件不能大于". $this->maxSize/1024 ." KB");
}
}
//保存上传文件
function savefile($imgName,$imgSize,$upImg)
{
parent::chk_ImgType($imgName);
$this->chk_fileSize($imgSize);
return $this->chk_savefile($imgName,$upImg);
}
// 检测上传结果是否成功
function chk_savefile($imgName,$upImg)
{
parent::CreateFolder($this->bigFolder); //创建放图片的文件夹
$bigNewName=$this->bigFolder.'/'.parent::createNewImgName($imgName);
$copymsg = move_uploaded_file($upImg,$bigNewName);
if( $copymsg )
{
return $bigNewName;
}
else
{
parent::msg("文件上传失败! \n\n请重新上传! ");
}
}
//上传并生成缩略图
function saveAllImg($imgName,$imgSize,$upImg,$small_width,$dis=0,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%")
{
$orImg=$this->savefile($imgName,$imgSize,$upImg);
parent::getImg($orImg,$small_width,$dis,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%");
}
}
//实例
/*********************************/
//单个图片上传
if($_FILES['poto']['tmp_name']!='')
{
$upImg=$_FILES['poto']['tmp_name'];
$imgName = $_FILES['poto']['name']; //获取上传的文件名
$imgSize = $_FILES['poto']['size']; //获取上传的文件大小（字节）
$getUpimg=new Upimg($firstFolder="images");
$getUpimg->saveAllImg($imgName,$imgSize,$upImg,400,1,$small_height=0,$rate=100,$water="logo.gif",$place="4",$toumindu="75%");
}
/*********************************/
?>
<!--单个图片上传实例表单-->
<form action="" method="POST" enctype="multipart/form-data">
选择上传图片：<input type="file" name="poto">
<input type="submit" value="上传" name="submit">
</form>
<!---->
</body>
</html>
作者: fkuepl 发布时间: 2009-04-17
复制代码直接运行及可，首次写类，望各位大位帮忙修改，指点不足之处，并说明为什么要这么改，最好发份改正过的。
作者: fkuepl 发布时间: 2009-04-17
确定能用？ 38行报错呢
作者: kisa77 发布时间: 2009-04-17
不会吧，我试过了的呀
作者: fkuepl 发布时间: 2009-04-17
38行有错
作者: farsee 发布时间: 2009-12-20
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