php 文件上传类

<?php/**file: fileupload.class.php 文件上传类FileUpload本类的实例对象用于处理上传文件，可以上传一个文件，也可同时处理多个文件上传 */class FileUpload { ???private $path = "./uploads"; //上传文件保存的路径 ???private $allowtype = array(‘jpg‘,‘gif‘,‘png‘); //设置限制上传文件的类型 ???private $maxsize = 1000000; //限制文件上传大小（字节） ???private $israndname = true; //设置是否随机重命名文件， false不随机 ???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） ????* 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，可以用于连贯操作 ????*/ ???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 $fileFile 上传文件的表单名称 ????* @return bool 如果上传成功返回数true ????*/ ???function upload($fileField) { ???????$return = true; ???????/* 检查文件路径是滞合法 */ ???????if( !$this->checkFilePath() ) { ???????????$this->errorMess = $this->getError(); ???????????return false; ???????} ???????/* 将文件上传的信息取出赋给变量 */ ???????$name = $_FILES[$fileField][‘name‘]; ???????$tmp_name = $_FILES[$fileField][‘tmp_name‘]; ???????$size = $_FILES[$fileField][‘size‘]; ???????$error = $_FILES[$fileField][‘error‘]; ???????/* 如果是多个文件上传则$file["name"]会是一个数组 */ ???????if(is_Array($name)){ ???????????$errors=array(); ???????????/*多个文件上传则循环处理 ， 这个循环只有检查上传文件的作用，并没有真正上传 */ ???????????for($i = 0; $i < count($name); $i++){ ???????????????/*设置文件信息 */ ???????????????if($this->setFiles($name[$i],$tmp_name[$i],$size[$i],$error[$i] )) { ???????????????????if(!$this->checkFileSize() || !$this->checkFileType()){ ???????????????????????$errors[] = $this->getError(); ???????????????????????$return=false; ???????????????????} ???????????????}else{ ???????????????????$errors[] = $this->getError(); ???????????????????$return=false; ???????????????} ???????????????/* 如果有问题，则重新初使化属性 */ ???????????????if(!$return) ???????????????????$this->setFiles(); ???????????} ???????????if($return){ ???????????????/* 存放所有上传后文件名的变量数组 */ ???????????????$fileNames = array(); ???????????????/* 如果上传的多个文件都是合法的，则通过销魂循环向服务器上传文件 */ ???????????????for($i = 0; $i < count($name); $i++){ ???????????????????if($this->setFiles($name[$i], $tmp_name[$i], $size[$i], $error[$i] )) { ???????????????????????$this->setNewFileName(); ???????????????????????if(!$this->copyFile()){ ???????????????????????????$errors[] = $this->getError(); ???????????????????????????$return = false; ???????????????????????} ???????????????????????$fileNames[] = $this->newFileName; ???????????????????} ???????????????} ???????????????$this->newFileName = $fileNames; ???????????} ???????????$this->errorMess = $errors; ???????????return $return; ???????????/*上传单个文件处理方法*/ ???????} else { ???????????/* 设置文件信息 */ ???????????if($this->setFiles($name,$tmp_name,$size,$error)) { ???????????????/* 上传之前先检查一下大小和类型 */ ???????????????if($this->checkFileSize() && $this->checkFileType()){ ???????????????????/* 为上传文件设置新文件名 */ ???????????????????$this->setNewFileName(); ???????????????????/* 上传文件 返回0为成功， 小于0都为错误 */ ???????????????????if($this->copyFile()){ ???????????????????????return true; ???????????????????}else{ ???????????????????????$return=false; ???????????????????} ???????????????}else{ ???????????????????$return=false; ???????????????} ???????????} else { ???????????????$return=false; ???????????}//如果$return为false, 则出错，将错误信息保存在属性errorMess中 ???????????if(!$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， 如果是多文件上传返回数组 ????*/ ???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报告，如果是多文件上传返回数组 ????*/ ???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); ???????return $fileName.‘.‘.$this->fileType; ???} ???/* 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; ???????} ???}}

 ???// 上传文件 ???public function import3Action() ???{ ???????//上传头像 ???????if(isPost()){ ???????????$file = $_FILES[‘file‘][‘tmp_name‘]; ???????????if(!empty($file)){ ???????????????Load::load_class(‘fileupload‘,DIR_BF_ROOT.‘classes‘,0); ???????????????$up = new fileupload; ???????????????$up -> set("path", DIR_ROOT . ‘static/uploadfile/zhizhao‘); ???????????????// ???????????$up -> set("path",DIR_BF_ROOT . ‘excel/‘); ???????????????$up -> set("maxsize", 200000); ???????????????$up -> set("allowtype", array("gif", "png", "jpg","jpeg")); ???????????????// ???????????$up -> set("allowtype", array("xls")); ???????????????if($up -> upload("file")) { ???????????????????// 获取上传后的文件名称 ???????????????????$filename = ?‘/static/uploadfile/zhizhao/‘.$up->getFileName(); ???????????????????echo json_encode(array(‘status‘ => 0, ‘name‘ => $filename));exit(); ???????????????} else { ???????????????????echo json_encode(array(‘statsu‘ => 1, ‘name‘ => $up->getErrorMsg()));exit(); ???????????????} ???????????} ???????} ???????//上传头像结束 ???????include $this->display(‘fileTest.html‘); ???}