www.gusucode.com > iWebshop开源PHP商城系统 v2.8源码程序 > iwebshop/classes/photoupload.php
<?php
/**
* @copyright (c) 2011 jooyea.cn
* @file photoupload.php
* @brief 图片上传防止重复类
* @author chendeshan
* @date 2010-12-16
* @version 0.6
*/
/**
* @class PhotoUpload
* @brief 图片上传防止重复类
*/
class PhotoUpload
{
private $dir = 'upload'; //图片存储的目录名称
private $iterance = true; //防止图片重复提交开关
private $thumbWidth = array(); //缩略图宽度
private $thumbHeight = array(); //缩略图高度
private $thumbKey = array(); //缩略图返回键名
//构造函数
function __construct($dir = '')
{
//设置默认路径地址
if($dir == '')
{
$dir = self::hashDir();
}
$this->setDir($dir);
}
/**
* @brief 获取图片散列目录
* @return string
*/
public static function hashDir()
{
$dir = isset(IWeb::$app->config['upload']) ? IWeb::$app->config['upload'] : $this->dir;
$dir .= '/'.date('Y/m/d');
return $dir;
}
/**
* @brief 防止图片重复提交
* @param bool $bool true:开启;false:关闭
*/
public function setIterance($bool)
{
$this->iterance = $bool;
}
/**
* @brief 设置上传的目录
* @param string $dir
*/
public function setDir($dir)
{
$this->dir = $dir;
}
/**
* @brief 设置缩略图宽度和高度
* @param int $width 生成缩略图宽度;
* @param int $height 生成缩略图高度;
* @param string $key 返回缩略图键名;
*/
public function setThumb($width,$height,$key = 'thumb')
{
$this->thumbWidth[] = intval($width);
$this->thumbHeight[] = intval($height);
if(in_array($key,$this->thumbKey))
{
$thumbCount = count($this->thumbKey) + 1;
$key = $key.$thumbCount;
}
$this->thumbKey[] = $key;
}
//防止图片文件重复提交机制
private function checkIterance($file,$photoObj)
{
//如果关闭了图片重复提交机制
if($this->iterance == false)
return null;
$fileMD5 = null; //上传图片的md5值(默认)
$photoRow = array(); //图库里照片信息(默认)
$result = array(); //结果
if(is_file($file))
{
//生成文件md5码
$fileMD5 = md5_file($file);
}
if($fileMD5 != null)
{
//根据md5值取得图像数据
$where = "id = '".$fileMD5."'";
$photoRow = $photoObj->getObj($where);
}
//设置了缩略图
if(isset($photoRow['img']))
{
if(is_file($photoRow['img']))
{
$result['img'] = $photoRow['img'];
$result['flag']= 1;
if($this->thumbWidth && $this->thumbHeight && $this->thumbKey)
{
foreach($this->thumbWidth as $thumbWidth_Key => $thumbWidth_Val)
{
//获取此宽度和高度应有的缩略图名
$fileExt = IFile::getFileSuffix($photoRow['img']);
$thumbFileName = str_replace('.'.$fileExt,'_'.$this->thumbWidth[$thumbWidth_Key].'_'.$this->thumbHeight[$thumbWidth_Key].'.'.$fileExt,$photoRow['img']);
if(is_file($thumbFileName))
{
$result['thumb'][$this->thumbKey[$thumbWidth_Key]] = $thumbFileName;
unset($this->thumbKey[$thumbWidth_Key]);
}
}
//重新生成系统中不存在的此宽高的缩略图
foreach($this->thumbKey as $thumbKey_key => $thumbKey_val)
{
$thumbExtName = '_'.$this->thumbWidth[$thumbKey_key].'_'.$this->thumbHeight[$thumbKey_key];
$thumbName = $this->thumb($photoRow['img'],$this->thumbWidth[$thumbKey_key],$this->thumbHeight[$thumbKey_key],$thumbExtName);
$result['thumb'][$this->thumbKey[$thumbKey_key]] = $thumbName;
}
}
return $result;
}
else
{
$photoObj->del('id = "'.$photoRow['id'].'"');
return null;
}
}
else
{
return null;
}
}
/**
* @brief 图片信息入库
* @param array $insertData 要插入数据
object $photoObj 图库对象
*/
private function insert($insertData,$photoObj)
{
if($this->iterance == true && !$photoObj->getObj('id = "'.$insertData['id'].'"'))
{
$photoObj->setData($insertData);
$photoObj->add();
}
}
/**
* @brief 生成$fileName文件的缩略图,位置与$fileName相同
* @param string $fileName 要生成缩略图的目标文件
* @param int $width 缩略图宽度
* @param int $height 缩略图高度
* @param string $extName 缩略图文件名附加值
* @param string $saveDir 缩略图存储目录
*/
public static function thumb($fileName,$width,$height,$extName = '_thumb',$saveDir = '')
{
return Thumb::get($fileName,$width,$height);
}
/**
* @brief 执行图片上传
* @param boolean $isForge 是否伪造数据提交
* @return array key:控件名; val:图片路径名;
*/
public function run($isForge = false)
{
//创建图片模型对象
$photoObj = new IModel('goods_photo');
//已经存在的图片文件数据
$photoArray = array();
//过滤图库中已经存在的图片
foreach($_FILES as $key => $val)
{
//上传的所有临时文件
$tmpFile = isset($_FILES[$key]['tmp_name']) ? $_FILES[$key]['tmp_name'] : null;
//没有找到匹配的控件
if($tmpFile == null)
continue;
if(is_array($tmpFile))
{
foreach($tmpFile as $tmpKey => $tmpVal)
{
$result = $this->checkIterance($tmpVal,$photoObj);
if($result != null)
{
$photoArray[$key][$tmpKey] = $result;
unset($_FILES[$key]['name'][$tmpKey]);
unset($_FILES[$key]['tmp_name'][$tmpKey]);
}
}
}
else
{
$result = $this->checkIterance($tmpFile,$photoObj);
if($result!=null)
{
$photoArray[$key] = $result;
unset($_FILES[$key]);
}
}
}
//图片上传
$upObj = new IUpload();
$upObj->isForge = $isForge;
$upObj->setDir($this->dir);
$upState = $upObj->execute();
//检查上传状态
foreach($upState as $key => $rs)
{
if(count($_FILES[$key]['name']) > 1)
$isArray = true;
else
$isArray = false;
foreach($rs as $innerKey => $val)
{
if($val['flag']==1)
{
//上传成功后图片信息
$fileName = $val['dir'].$val['name'];
$fileMD5 = md5_file($fileName);
$rs[$innerKey]['img'] = $fileName;
$insertData = array(
'id' => $fileMD5,
'img' => $fileName
);
//将图片信息入库
$this->insert($insertData,$photoObj);
if($this->thumbWidth && $this->thumbHeight && $this->thumbKey)
{
//重新生成系统中不存在的此宽高的缩略图
foreach($this->thumbKey as $thumbKey_key => $thumbKey_val)
{
$thumbExtName = '_'.$this->thumbWidth[$thumbKey_key].'_'.$this->thumbHeight[$thumbKey_key];
$thumbName = $this->thumb($fileName,$this->thumbWidth[$thumbKey_key],$this->thumbHeight[$thumbKey_key],$thumbExtName);
$rs[$innerKey]['thumb'][$this->thumbKey[$thumbKey_key]] = $thumbName;
}
}
}
if($isArray == true)
{
$photoArray[$key] = $rs;
}
else
{
$photoArray[$key] = $rs[0];
}
}
}
return $photoArray;
}
}