用户注册



邮箱:

密码:

用户登录


邮箱:

密码:
记住登录一个月忘记密码?

发表随想


还能输入:200字
云代码 - php代码库

上传文件代码

2015-08-31 作者: xiaoxiami举报

[php]代码库

class FileUpload extends Image{
        private $allowtype = array('jpg','gif','png'); //限制上传文件的类型,可以使用set()设置,使用小字母
        private $maxsize = 1000000;  //限制文件上传大小,单位是字节,可以使用set()设置
        private $israndname = true;   //设置是否随机重命名 false为不随机,可以使用set()设置
        private $thumb=array();      //设置缩放图片,可以使用set()设置
        private $watermark=array();  //设置为图片加水印,可以使用set()设置
        private $originName;         //源文件名
        private $tmpFileName;        //临时文件名
        private $fileType;       //文件类型(文件后缀)
        private $fileSize;            //文件大小
        private $newFileName;         //新文件名
        private $errorNum = 0;        //错误号
        private $errorMess="";       //错误报告消息
         
        /**
         * 用于设置成员属性($path, $allowtype,$maxsize, $israndname, $thumb,$watermark)
         * 可以通过连贯操作一次设置多个属性值
         *@param    string  $key    成员属性名(不区分大小写)
         *@param    mixed   $val    为成员属性设置的值
         *@return   object      返回自己对象$this
         */
        function set($key, $val){
            $key=strtolower($key);
            if(array_key_exists($key,get_class_vars(get_class($this)))){
                $this->setOption($key, $val);
            }
 
            return $this;
        }
 
        /**
         * 调用该方法上传文件
         * @param   string  $fileFile   上传文件的表单名称 例如:<input type="file" name="myfile"> 参数则为myfile
         * @return  bool             如果上传成功返回数true
         */
         
        function upload($fileField) {
            $return=true;
            if(!$this->checkFilePath()) {//检查文件路径
                $this->errorMess=$this->getError();
                return false;
            }
            $name=$_FILES[$fileField]['name'];
            $tmp_name=$_FILES[$fileField]['tmp_name'];
            $size=$_FILES[$fileField]['size'];
            $error=$_FILES[$fileField]['error'];
 
         
         
            if(is_Array($name)){  //如果是多个文件上传则$file["name"]会是一个数组
                $errors=array();
                for($i = 0; $i < count($name); $i++){
                    if($this->setFiles($name[$i],$tmp_name[$i],$size[$i],$error[$i] )) {//设置文件信息
                        if(!$this->checkFileSize() || !$this->checkFileType()){
                            $errors[]=$this->getError();
                            $return=false; 
                        }
                    }else{
                        $errors[]=$this->getError();
                        $return=false;
                    }
 
                    if(!$return// 如果有问题,则重新初使化属性
                        $this->setFiles();
                }
             
                if($return){
                    $fileNames=array();   //存放所有上传后文件名的变量数组
         
                    for($i = 0; $i < count($name);  $i++){
                        if($this->setFiles($name[$i],$tmp_name[$i],$size[$i],$error[$i] )) {//设置文件信息
                            $this->setNewFileName(); //设置新文件名
                            if(!$this->copyFile()){
                                $errors[]=$this->getError();
                                $return=false;
                            }
                            $fileNames[]=$this->newFileName;
                            //设置缩放
                            if(!empty($this->thumb)){
                                if(empty($this->thumb["prefix"]))
                                    $this->thumb["prefix"]="";
                             
                                $this->newFileName=$this->thumb($this->newFileName, $this->thumb["width"], $this->thumb["height"], $this->thumb["prefix"]);                      
                            }
                            //设置水印
                            if(!empty($this->watermark)){
                                if(empty($this->watermark["prefix"]))
                                    $this->watermark["prefix"]="";
                                $this->newFileName=$this->watermark($this->newFileName, $this->watermark["water"], $this->watermark["position"],$this->watermark["prefix"], $this->watermark["path"]);
                            }
                        }
                                             
                    }
                    $this->newFileName=$fileNames;
                     
                }
                $this->errorMess=$errors;
                return $return;
                 
            } else {
                if($this->setFiles($name,$tmp_name,$size,$error)) {//设置文件信息
                    if($this->checkFileSize() && $this->checkFileType()){
                        $this->setNewFileName(); //设置新文件名
                        if($this->copyFile()){ //上传文件   返回0为成功, 小于0都为错误
                            if(!empty($this->thumb)){
                                if(empty($this->thumb["prefix"]))
                                    $this->thumb["prefix"]="";
                                $this->newFileName=$this->thumb($this->newFileName, $this->thumb["width"], $this->thumb["height"], $this->thumb["prefix"]);                      
                            }
                            if(!empty($this->watermark)){
                                if(empty($this->watermark["prefix"]))
                                    $this->watermark["prefix"]="";
                                $this->newFileName=$this->watermark($this->newFileName, $this->watermark["water"], $this->watermark["position"],$this->watermark["prefix"],$this->watermark["path"]);
                            }
 
                            return true;
                        }else{
                            $return=false;
                        }
                    }else{
                        $return=false;
                    }
                } else {
                    $return=false; 
                }
 
                if(!$return)
                    $this->errorMess=$this->getError();
 
                return $return;
            }
         
        }
 
        /**
         * 获取上传后的文件名称
         * @param   void     没有参数
         * @return  string  上传后,新文件的名称
         */
        public function getFileName(){
            return $this->newFileName;
        }
 
        /**
         * 上传失败后,调用该方法则返回,上传出错信息
         * @param   void     没有参数
         * @return  string   返回上传文件出错的信息提示
         */
        public function getErrorMsg(){
            return $this->errorMess;
        }
         
        //设置上传出错信息
        private function getError() {
            $str = "上传文件<font color='red'>{$this->originName}</font>时出错 : ";
            switch ($this->errorNum) {
                case 4: $str .= "没有文件被上传"; break;
                case 3: $str .= "文件只有部分被上传"; break;
                case 2: $str .= "上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值"; break;
                case 1: $str .= "上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值"; break;
                case -1: $str .= "未允许类型"; break;
                case -2: $str .= "文件过大,上传的文件不能超过{$this->maxsize}个字节"; break;
                case -3: $str .= "上传失败"; break;
                case -4: $str .= "建立存放上传文件目录失败,请重新指定上传目录"; break;
                case -5: $str .= "必须指定上传文件的路径"; break;
                default: $str .= "未知错误";
            }
            return $str.'<br>';
        }
 
         
        //设置和$_FILES有关的内容
        private function setFiles($name="", $tmp_name="", $size=0, $error=0) {
            $this->setOption('errorNum', $error);
            if($error)
                return false;
            $this->setOption('originName', $name);
            $this->setOption('tmpFileName',$tmp_name);
            $aryStr = explode(".", $name);
            $this->setOption('fileType', strtolower($aryStr[count($aryStr)-1]));
            $this->setOption('fileSize', $size);
            return true;
        }
     
        //为单个成员属性设置值
        private function setOption($key, $val) {
            $this->$key = $val;
        }
 
        //设置上传后的文件名称
        private function setNewFileName() {
            if ($this->israndname) {
                $this->setOption('newFileName', $this->proRandName());   
            } else{
                $this->setOption('newFileName', $this->originName);
            }
        }
         
        //检查上传的文件是否是合法的类型
        private function checkFileType() {
            if (in_array(strtolower($this->fileType), $this->allowtype)) {
                return true;
            }else {
                $this->setOption('errorNum', -1);
                return false;
            }
        }
            //检查上传的文件是否是允许的大小
        private function checkFileSize() {
            if ($this->fileSize > $this->maxsize) {
                $this->setOption('errorNum', -2);
                return false;
            }else{
                return true;
            }
        }
 
        //检查是否有存放上传文件的目录
        private function checkFilePath() {
            if(empty($this->path)){
                $this->setOption('errorNum', -5);
                return false;
            }
            if (!file_exists($this->path) || !is_writable($this->path)) {
                if (!@mkdir($this->path, 0755)) {
                    $this->setOption('errorNum', -4);
                    return false;
                }
            }
 
            return true;
        }
        //设置随机文件名
        private function proRandName() {       
            $fileName=date('YmdHis')."_".rand(100,999);   //获取随机文件名
            return $fileName.'.'.$this->fileType;    //返回文件名加原扩展名
        }
         
 
        //复制上传文件到指定的位置
        private function copyFile() {
            if(!$this->errorNum) {
                $path = rtrim($this->path, '/').'/';
                $path .= $this->newFileName;
                if (@move_uploaded_file($this->tmpFileName, $path)) {
                    return true;
                }else{
                    $this->setOption('errorNum', -3);
                    return false;
                }
            } else {
                return false;
            }
         
        }
         
    }


网友评论    (发表评论)


发表评论:

评论须知:

  • 1、评论每次加2分,每天上限为30;
  • 2、请文明用语,共同创建干净的技术交流环境;
  • 3、若被发现提交非法信息,评论将会被删除,并且给予扣分处理,严重者给予封号处理;
  • 4、请勿发布广告信息或其他无关评论,否则将会删除评论并扣分,严重者给予封号处理。


扫码下载

加载中,请稍后...

输入口令后可复制整站源码

加载中,请稍后...