原创PHP上传类 瑞意上传类
本人原创的PHP文件上传类。有如下主要功能：
1. 单个上传、批量上传
2. 上传文件大小限制
3. 上传文件扩展名限制
4. 上传文件类型限制
5. 自动创建上传目标目录
6. 自动以时间重命名上传文件
7. 上传结果返回
下载地址:
http://www.
程序代码：<?
//类名: RUpload 瑞意上传类
//Create By Rain, Jan 20 2007
//Update By Rain, Oct 10 2008
//Copyright @
class RUpload {
var $max_file_size; //当不大于0时,表示上传文件大小只受服务器配置的上传文件大小限制
var $accept_type = ""; //for example: set_accept_type("image|audio|video")
var $refuse_type = ""; //for example: set_refuse_type("application|text")
var $accept_ext = ""; //for example: set_accept_ext("jpg|gif|png|mp3|wma")
var $refuse_ext = ""; //for example: set_refuse_ext("php|asp|aspx|jsp|exe|com)"
var $error = 0; //0:无错误 1:上传失败 2:文件已存在(不覆盖模式上传) 3:非法的文件类型 4:非法的文件扩展名 5:文件大小为零或超出限制 6:创建目录失败
//构造函数 参数: 单个文件大小限制, 允许的扩展名, 拒绝的扩展名, 允许的类型, 拒绝的类型
function RUpload($max_file_size = 0, $accept_ext = '', $refuse_ext = '', $accept_type = '', $refuse_type = '') {
$this->max_file_size = $max_file_size <= 0 ? (int)ini_get('upload_max_filesize') * 1048576 : $max_file_size;
$this->set_accept_ext($accept_ext);
$this->set_refuse_ext($refuse_ext);
$this->set_accept_type($accept_type);
$this->set_refuse_type($refuse_type);
}
//把表单中存在的文件全部上传保存到$upload_dir，不改文件名 $overwrite=1时，文件名相同，覆盖原文件
function save($upload_dir = '', $overwrite = 1) {
$upload_dir = $this->set_upload_dir($upload_dir);
$i = 0;
foreach ($_FILES as $file) {
$is_ok[$i]['src'] = $file['name'];
$is_ok[$i]['dst'] = false;
if ($this->check_file_size($file) && $this->check_file_type($file) && $this->check_file_ext($file)) {
if ($overwrite || !file_exists($upload_dir . $file['name']))
if (move_uploaded_file($file['tmp_name'], $upload_dir . $file['name'])) {
$is_ok[$i]['src'] = $file['name'];
$is_ok[$i]['dst'] = $file['name'];
}
else {
$this->error = 1;
}
else {
$this->error = 2;
}
}
$i++;
}
return $is_ok;
}
//把表单中存在的文件全部上传保存到$upload_dir，文件名以当前时间命名 $overwrite=1时，文件名相同，覆盖原文件
//返回上传结果数组
function save_as_timestr($upload_dir = '', $overwrite = 1) {
$upload_dir = $this->set_upload_dir($upload_dir);
$i = 0;
$j = 0;
foreach ($_FILES as $file) {
$is_ok[$j]['src'] = $file['name'];
$is_ok[$j]['dst'] = false;
if ($this->check_file_size($file) && $this->check_file_type($file) && $this->check_file_ext($file)) {
if ($overwrite || !file_exists($upload_dir . $file['name'])) {
if (!$i) {
list($usec) = explode(' ', microtime());
$usec = substr($usec, 2, 6);
$file_name = date("ymdHis") . $usec;
}
$full_file_name = $file_name . "_" . $i . "." . $this->get_file_ext($file['name']);
if (move_uploaded_file($file['tmp_name'], $upload_dir . $full_file_name)) {
$is_ok[$j]['src'] = $file['name'];
$is_ok[$j]['dst'] = $full_file_name;
}
else {
$this->error = 1;
}
$i++;
}
else {
$this->error = 2;
}
}
$j++;
}
return $is_ok;
}
//把表单中文件域为$form_file的文件上传保存到目录$upload_dir，不改文件名 $overwrite=1时，文件名相同，覆盖原文件，返回true or false
function file_save($form_file, $upload_dir = '', $overwrite = 1) {
return $this->file_save_as($form_file, $_FILES[$form_file]['name'], $upload_dir, $overwrite);
}
//把表单中文件域为$form_file的文件上传保存到目录$upload_dir，文件名以当前时间命名 $overwrite=1时，文件名相同，覆盖原文件，返回文件名，失败返回false
function file_save_as_timestr($form_file, $upload_dir = '', $overwrite = 1) {
list($usec) = explode(' ', microtime());
$usec = substr($usec, 2, 6);
$full_file_name = date("ymdHis") . "$usec." . $this->get_file_ext($_FILES[$form_file]['name']);
if ($this->file_save_as($form_file, $full_file_name, $upload_dir, $overwrite))
return $full_file_name;
else
return false;
}
//把表单中文件域为$form_file的文件上传保存到目录$upload_dir，文件名为$file_name $overwrite=1时，文件名相同，覆盖原文件，返回true or false
function file_save_as($form_file, $file_name, $upload_dir = '', $overwrite = 1) {
$upload_dir = $this->set_upload_dir($upload_dir);
$is_ok = false;
$file = $_FILES[$form_file];
if ($this->check_file_size($file) && $this->check_file_type($file) && $this->check_file_ext($file)) {
if ($overwrite || !file_exists($upload_dir . $file_name)) {
if (move_uploaded_file($file['tmp_name'], $upload_dir . $file_name))
$is_ok = true;
else
$this->error = 1;
}
else {
$this->error = 2;
}
}
return $is_ok;
}
function set_refuse_type($refuse_type) { //设置不允许的文件类型
$this->refuse_type = $this->my_preg_replace($refuse_type);
}
function set_accept_type($accept_type) { //设置允许的文件类型
$this->accept_type = $this->my_preg_replace($accept_type);
}
function set_refuse_ext($refuse_ext) { //设置不允许的文件扩展名
$this->refuse_ext = $this->my_preg_replace($refuse_ext);
}
function set_accept_ext($accept_ext) { //设置允许的文件扩展名
$this->accept_ext = $this->my_preg_replace($accept_ext);
}
function set_max_file_size($max_file_size) { //设置单个文件大小限制（字节）
$this->max_file_size = $max_file_size;
}
function get_error_code() {//获取最后的错误代码
return $this->error;
}
function get_error() { //获取最后的错误信息
switch ($this->error) {
case 0:
$str_err = "没有错误"; break;
case 1:
$str_err = "上传失败"; break;
case 2:
$str_err = "文件已存在"; break;
case 3:
$str_err = "非法的文件类型"; break;
case 4:
$str_err = "非法的文件扩展名"; break;
case 5:
$str_err = "文件大小为零或超出限制" . ($this->max_file_size / 1024) . "K"; break;
case 6:
$str_err = "创建目录失败"; break;
}
return "错误" . $this->error . "：{$str_err}。";
}
function print_error() { //打印最后的错误信息
echo $this->get_error();
}
function get_file_type($file_type) { //获取文件类型
$i = strrpos($file_type, "/");
if ($i > 0)
return substr($file_type, 0, $i);
else
return "";
}
function get_file_ext($file_name) { //获取文件扩展名
$i = strrpos($file_name, ".");
if ($i > 0)
return substr($file_name, $i + 1);
else
return "";
}
function get_file_size($form_file) { //获取文件域对应文件大小
return $_FILES[$form_file]['size'];
}
function get_all_file_size($form_file) { //获取上传表单中全部文件大小
$i = 0;
foreach ($_FILES as $file) {
$all_file_size[$i] = $file['size'];
$i++;
}
return $all_file_size;
}
function get_file_name($form_file) { //获取文件域对应文件名
return $_FILES[$form_file]['name'];
}
function get_all_file_name() { //获取上传表单中全部文件名
$i = 0;
foreach ($_FILES as $file) {
$all_file_name[$i] = $file['name'];
$i++;
}
return $all_file_name;
}
//以下的protected型方法，最好不要在外部调用
function check_file_type($file) { //检查文件类型是否被允许
if ($this->accept_type != "") {
if (!preg_match($this->accept_type, $this->get_file_type($file['type']))) {
$this->error = 3;
return false;
}
}
if ($this->refuse_type != "") {
if (preg_match($this->refuse_type, $this->get_file_type($file['type']))) {
$this->error = 3;
return false;
}
}
return true;
}
function check_file_ext($file) { //检查文件扩展名是否被允许
if ($this->accept_ext != "") {
if (!preg_match($this->accept_ext, $this->get_file_ext($file['name']))) {
$this->error = 4;
return false;
}
}
if ($this->refuse_ext != "") {
if (preg_match($this->refuse_ext, $this->get_file_ext($file['name']))) {
$this->error = 4;
return false;
}
}
return true;
}
function check_file_size($file) { //检查文件大小是否超出限制
if ($file['size'] > 0) {
if ($this->max_file_size > 0) {
if ($file['size'] > $this->max_file_size) {
$this->error = 5;
return false;
}
}
return true;
}
else {
$this->error = 5;
return false;
}
}
function my_preg_replace($str){ //替换成正则表达式
$str = trim($str);
if ($str) {
$str = preg_replace("/\b/", "\b", $str);
$str = "/" . $str . "/i";
}
return $str;
}
function set_upload_dir($upload_dir) { //格式化并创建上传目录
//格式化目录
$upload_dir = preg_replace("/[\\\\\/]+/", '/', trim($upload_dir));
if ($upload_dir) {
/*if (preg_match("/^\.{0,2}\//", $upload_dir))
$upload_dir = './' . $upload_dir;
*/
if (substr($upload_dir, -1) != '/')
$upload_dir .= '/';
if (preg_match("/^[\.\/]+$/", $upload_dir))
return $upload_dir;
}
else if ($upload_dir === '0') {
$upload_dir = './0/';
}
else {
return './';
}
//创建目录
$arr_dir = explode('/', $upload_dir);
$dir_tmp = '';
foreach ($arr_dir as $en) {
$dir_tmp .= $en . '/';
if (!file_exists($dir_tmp)) {
if (!@mkdir($dir_tmp)) {
$this->error = 6;
return false;
}
}
}
return $upload_dir;
}
}
?>
<?
//######## 测试 ########
/*
if ($_FILES) {
$upload = new RUpload();
print_r($upload->save_as_timestr('rupload/')); //批量上传
//print_r($upload->file_save_as_timestr('fileField1')); //单个上传
$upload->print_error();
}
echo '<form enctype="multipart/form-data" method="post" action="">
<input type="file" name="fileField0" /><br />
<input type="file" name="fileField1" /><br />
<input type="file" name="fileField2" /><br />
<input type="submit" value="提交" />
</form>';
*/
?>
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