只要以数组形式来命名表单中的文件上传标记,即可实现多个文件同时上传。
下面我们来看一个例子:
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-
-
function upload($file_error, $file_tmp_name, $file_name){
- $info = "";
-
- if($file_name == "")
- return $info;
-
- switch($file_error){
- case UPLOAD_ERR_INI_SIZE:
- $info = $file_name. ": 文件大小超过了服务器的限制";
- break;
- case UPLOAD_ERR_FORM_SIZE:
- $info = $file_name. ": 文件大小超过了浏览器的限制";
- break;
- case UPLOAD_ERR_PARTIAL:
- $info = $file_name. ": 只上传了部分文件";
- break;
- case UPLOAD_ERR_NO_FILE:
- $info = $file_name. ": 没有文件被上传";
- break;
- case UPLOAD_ERR_NO_TMP_DIR:
- $info = $file_name. ": 找不到临时文件夹";
- break;
- case UPLOAD_ERR_CANT_WRITE:
- $info = $file_name. ": 文件写入失败";
- break;
- case UPLOAD_ERR_OK:
- $upload_dir = './'.iconv("UTF-8","gb2312",$file_name);
- if(file_exists($upload_dir)){
- $info = $file_name.": 同名文件已经存在";
- }else{
- if(move_uploaded_file($file_tmp_name,$upload_dir)){
- $info = $file_name.": 文件上传成功";
- }else{
- $info = $file_name.": 文件上传失败";
- }
- }
- break;
- }
- return $info;
- }
-
- if(isset($_POST['submit'])){
- $info = '';
- $count = count($_FILES['upload_file']['name']);
- for($i=0; $i if($_FILES['upload_file']['name'][$i] == "")
- continue;
- $info = upload(
- $_FILES['upload_file']['error'][$i],
- $_FILES['upload_file']['tmp_name'][$i],
- $_FILES['upload_file']['name'][$i]
- );
- }
- echo $info;
- }
-
- ?>
复制代码
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代码执行结果如下:
注意:
1、中, name="upload_file[]"一定要以数组形式命名,不然就会出现错误: “Uninitialized string offset: 0”,这句话的意思是你的数组key值越界了
2、$_FILES['upload_file']['name'][$i]中, upload_file是表单中上传文件标记符的名称,多文件上传时,数组$_FILES的第三维下标会自动从0开始依次编号。 |