maxsize = $maxsize;
}
if(!empty($allowexts)) {
if(is_array($allowexts)) {
$this->allowexts = array_map('strtolower',$allowexts);
}else {
$this->allowexts = explode(',',strtolower($allowexts));
}
}
if(!empty($allowtypes)) {
if(is_array($allowtypes)) {
$this->allowtypes = array_map('strtolower',$allowtypes);
}else {
$this->allowtypes = explode(',',strtolower($allowtypes));
}
}
if(!empty($saverule)) {
$this->saverule = $saverule;
}else{
$this->saverule=c('upload_file_rule');
}
$this->savepath = $savepath;
}
/**
+----------------------------------------------------------
* 上传一个文件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param mixed $name 数据
* @param string $value 数据表名
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws thinkexecption
+----------------------------------------------------------
*/
private function save($file) {
$filename = $file['savepath'].$file['savename'];
if(!$this->uploadreplace && is_file($filename)) {
// 不覆盖同名文件
$this->error='文件已经存在！'.$filename;
return false;
}
// 如果是图像文件 检测文件格式
if( in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png','swf')) && false === getimagesize($file['tmp_name'])) {
$this->error = '非法图像文件';
return false;
}
if(!move_uploaded_file($file['tmp_name'], $this->auto_charset($filename,'utf-8','gbk'))) {
$this->error = '文件上传保存错误！';
return false;
}
if($this->thumb && in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png'))) {
$image = getimagesize($filename);
if(false !== $image) {
//是图像文件生成缩略图
$thumbwidth=explode(',',$this->thumbmaxwidth);
$thumbheight=explode(',',$this->thumbmaxheight);
$thumbprefix=explode(',',$this->thumbprefix);
$thumbsuffix = explode(',',$this->thumbsuffix);
$thumbfile=explode(',',$this->thumbfile);
$thumbpath = $this->thumbpath?$this->thumbpath:$file['savepath'];
// 生成图像缩略图
import($this->imageclasspath);
$realfilename = $this->autosub?basename($file['savename']):$file['savename'];
for($i=0,$len=count($thumbwidth); $i $thumbname=$thumbpath.$thumbprefix[$i].substr($realfilename,0,strrpos($realfilename, '.')).$thumbsuffix[$i].'.'.$file['extension'];
image::thumb($filename,$thumbname,'',$thumbwidth[$i],$thumbheight[$i],true);
}
if($this->thumbremoveorigin) {
// 生成缩略图之后删除原图
unlink($filename);
}
}
}
if($this->zipimags) {
// todo 对图片压缩包在线解压
}
return true;
}
/**
+----------------------------------------------------------
* 上传所有文件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $savepath 上传文件保存路径
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws thinkexecption
+----------------------------------------------------------
*/
public function upload($savepath ='') {
//如果不指定保存文件名，则由系统默认
if(empty($savepath))
$savepath = $this->savepath;
// 检查上传目录
if(!is_dir($savepath)) {
// 检查目录是否编码后的
if(is_dir(base64_decode($savepath))) {
$savepath=base64_decode($savepath);
}else{
// 尝试创建目录
if(!mkdir($savepath)){
$this->error = '上传目录'.$savepath.'不存在';
return false;
}
}
}else {
if(!is_writeable($savepath)) {
$this->error = '上传目录'.$savepath.'不可写';
return false;
}
}
$fileinfo = array();
$isupload = false;
// 获取上传的文件信息
// 对$_files数组信息处理
$files=$this->dealfiles($_files);
foreach($files as $key => $file) {
//过滤无效的上传
if(!empty($file['name'])) {
//登记上传文件的扩展信息
$file['key'] = $key;
$file['extension'] = $this->getext($file['name']);
$file['savepath'] = $savepath;
$file['savename'] = $this->getsavename($file);
// 自动检查附件
if($this->autocheck) {
if(!$this->check($file))
return false;
}
//保存上传文件
if(!$this->save($file)) return false;
if(function_exists($this->hashtype)) {
$fun = $this->hashtype;
$file['hash'] = $fun($this->auto_charset($file['savepath'].$file['savename'],'utf-8','gbk'));
}
//上传成功后保存文件信息，供其他地方调用
unset($file['tmp_name'],$file['error']);
$fileinfo[$key] = $file;
$isupload = true;
}
}
if($isupload) {
$this->uploadfileinfo = $fileinfo;
return true;
}else {
$this->error = '没有选择上传文件';
return false;
}
}
/**
+----------------------------------------------------------
* 上传单个上传字段中的文件 支持多附件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param array $file 上传文件信息
* @param string $savepath 上传文件保存路径
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws thinkexecption
+----------------------------------------------------------
*/
public function uploadone($file,$savepath=''){
//如果不指定保存文件名，则由系统默认
if(empty($savepath))
$savepath = $this->savepath;
// 检查上传目录
if(!is_dir($savepath)) {
// 尝试创建目录
if(!mk_dir($savepath)){
$this->error = '上传目录'.$savepath.'不存在';
return false;
}
}else {
if(!is_writeable($savepath)) {
$this->error = '上传目录'.$savepath.'不可写';
return false;
}
}
//过滤无效的上传
if(!empty($file['name'])) {
$filearray = array();
if(is_array($file['name'])) {
$keys = array_keys($file);
$count=count($file['name']);
for ($i=0; $i foreach ($keys as $key)
$filearray[$i][$key] = $file[$key][$i];
}
}else{
$filearray[] = $file;
}
$info = array();
foreach ($filearray as $key=>$file){
//登记上传文件的扩展信息
$file['extension'] = $this->getext($file['name']);
$file['savepath'] = $savepath;
$file['savename'] = $this->getsavename($file);
// 自动检查附件
if($this->autocheck) {
if(!$this->check($file))
return false;
}
//保存上传文件
if(!$this->save($file)) return false;
if(function_exists($this->hashtype)) {
$fun = $this->hashtype;
$file['hash'] = $fun($this->auto_charset($file['savepath'].$file['savename'],'utf-8','gbk'));
}
unset($file['tmp_name'],$file['error']);
$info[] = $file;
}
// 返回上传的文件信息
return $info;
}else {
$this->error = '没有选择上传文件';
return false;
}
}
// 自动转换字符集 支持数组转换
private function auto_charset($fcontents, $from='gbk', $to='utf-8') {
$from = strtoupper($from) == 'utf8' ? 'utf-8' : $from;
$to = strtoupper($to) == 'utf8' ? 'utf-8' : $to;
if (strtoupper($from) === strtoupper($to) || empty($fcontents) || (is_scalar($fcontents) && !is_string($fcontents))) {
//如果编码相同或者非字符串标量则不转换
return $fcontents;
}
if (is_string($fcontents)) {
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($fcontents, $to, $from);
} elseif (function_exists('iconv')) {
return iconv($from, $to, $fcontents);
} else {
return $fcontents;
}
} elseif (is_array($fcontents)) {
foreach ($fcontents as $key => $val) {
$_key = $this->auto_charset($key, $from, $to);
$fcontents[$_key] = $this->auto_charset($val, $from, $to);
if ($key != $_key)
unset($fcontents[$key]);
}
return $fcontents;
}
else {
return $fcontents;
}
}
/**
+----------------------------------------------------------
* 转换上传文件数组变量为正确的方式
*
* 修改：
* 当设置name=upload[]时，key为“upload”，对应一个包含多个文
* 件信息的以数字索为引多维数组，name=upload1...，key为对应
* 的名字
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $files 上传的文件变量
+----------------------------------------------------------
* @return array
+----------------------------------------------------------
*/
private function dealfiles($files) {
$filearray = array();
foreach ($files as $field => $file){
if(is_array($file['name'])) {
$keys = array_keys($file);
$count=count($file['name']);
for ($i=0; $i foreach ($keys as $key)
$filearray[$field][$key] = $file[$key][$i];
}
}else{
$filearray[$field] = $file;
}
}
return $filearray;
}
/**
+----------------------------------------------------------
* 获取错误代码信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $errorno 错误号码
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
* @throws thinkexecption
+----------------------------------------------------------
*/
protected function error($errorno) {
switch($errorno) {
case 1:
$this->error = '上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值';
break;
case 2:
$this->error = '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 3:
$this->error = '文件只有部分被上传';
break;
case 4:
$this->error = '没有文件被上传';
break;
case 6:
$this->error = '找不到临时文件夹';
break;
case 7:
$this->error = '文件写入失败';
break;
default:
$this->error = '未知上传错误！';
}
return ;
}
/**
+----------------------------------------------------------
* 根据上传文件命名规则取得保存文件名
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 数据
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
private function getsavename($filename) {
$rule = $this->saverule;
if(empty($rule)) {//没有定义命名规则，则保持文件名不变
//$savename = $filename['name'];
$savename = date('ymdhis').rand()...$filename['extension'];
}else{
if(function_exists($rule)) {
//使用函数生成一个唯一文件标识号
$savename = $rule()...$filename['extension'];
}else {
//使用给定的文件名作为标识号
$savename = $rule...$filename['extension'];
}
}
if($this->autosub) {
// 使用子目录保存文件
$filename['savename'] = $savename;
$savename = $this->getsubname($filename).'/'.$savename;
}
return $savename;
}
/**
+----------------------------------------------------------
* 获取子目录的名称
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $file 上传的文件信息
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
private function getsubname($file) {
switch($this->subtype) {
case 'date':
$dir = date($this->dateformat,time());
break;
case 'hash':
default:
$name = md5($file['savename']);
$dir = '';
for($i=0;$ihashlevel;$i++) {
$dir .= $name{$i}.'/';
}
break;
}
if(!is_dir($file['savepath'].$dir)) {
mk_dir($file['savepath'].$dir);
}
return $dir;
}
/**
+----------------------------------------------------------
* 检查上传的文件
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $file 文件信息
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function check($file) {
if($file['error']!== 0) {
//文件上传失败
//捕获错误代码
$this->error($file['error']);
return false;
}
//文件上传成功，进行自定义规则检查
//检查文件大小
if(!$this->checksize($file['size'])) {
$this->error = '上传文件大小不符！';
return false;
}
//检查文件mime类型
if(!$this->checktype($file['type'])) {
$this->error = '上传文件mime类型不允许！';
return false;
}
//检查文件类型
if(!$this->checkext($file['extension'])) {
$this->error ='上传文件类型不允许';
return false;
}
//检查是否合法上传
if(!$this->checkupload($file['tmp_name'])) {
$this->error = '非法上传文件！';
return false;
}
return true;
}
/**
+----------------------------------------------------------
* 检查上传的文件类型是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $type 数据
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checktype($type) {
if(!empty($this->allowtypes))
return in_array(strtolower($type),$this->allowtypes);
return true;
}
/**
+----------------------------------------------------------
* 检查上传的文件后缀是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $ext 后缀名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkext($ext) {
if(!empty($this->allowexts))
return in_array(strtolower($ext),$this->allowexts,true);
return true;
}
/**
+----------------------------------------------------------
* 检查文件大小是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param integer $size 数据
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checksize($size) {
return !($size > $this->maxsize) || (-1 == $this->maxsize);
}
/**
+----------------------------------------------------------
* 检查文件是否非法提交
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 文件名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkupload($filename) {
return is_uploaded_file($filename);
}
/**
+----------------------------------------------------------
* 取得上传文件的后缀
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 文件名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function getext($filename) {
$pathinfo = pathinfo($filename);
return $pathinfo['extension'];
}
/**
+----------------------------------------------------------
* 取得上传文件的信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return array
+----------------------------------------------------------
*/
public function getuploadfileinfo() {
return $this->uploadfileinfo;
}
/**
+----------------------------------------------------------
* 取得最后一次错误信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
public function geterrormsg() {
return $this->error;
}
}
以上就介绍了thinkphp文件上传类，包括了方面的内容，希望对php教程有兴趣的朋友有所帮助。