function __construct($file, $path, $size = 2097152, $type = '') {
$this->user_post_file = $file;
if(!is_dir($path)){ //存储路径文件不存在就创建
mkdir($path);
chmod($path,0777);
}
$this->save_file_path = $path;
$this->max_file_size = $size; //如果用户不填写文件大小,则默认为 2M.
if ($type != '')
$this->allow_type = $type;
}
/**
* 存储用户上传文件,检验合法性通过后,存储至指定位置。
*/
function upload() {
for ($i = 0; $i < count($this->user_post_file['name']); $i++) {
//如果当前文件上传功能,则执行下一步。
if ($this->user_post_file['error'][$i] == 0) {
//取当前文件名、临时文件名、大小、扩展名,后面将用到。
$name = $this->user_post_file['name'][$i];
$tmpname = $this->user_post_file['tmp_name'][$i];
$size = $this->user_post_file['size'][$i];
$mime_type = $this->user_post_file['type'][$i];
$type = $this->getFileExt($this->user_post_file['name'][$i]);
//检测当前上传文件大小是否合法。
if (!$this->checkSize($size)) {
$this->last_error = "The file size is too big. File name is: ".$name;
$this->halt($this->last_error);
continue;
}
//检测当前上传文件扩展名是否合法。
if (!$this->checkType($type)) {
$this->last_error = "Unallowable file type: .".$type." File name is: ".$name;
$this->halt($this->last_error);
continue;
}
//检测当前上传文件是否非法提交。
if(!is_uploaded_file($tmpname)) {
$this->last_error = "Invalid post file method. File name is: ".$name;
$this->halt($this->last_error);
continue;
}