我有以下情况：当用户点击时，我需要一次上传3个文件
<?php echo form_open_multipart('uploads/do_upload', 'class="dropzone", id="dropzone-prod", data-nextFormExecDropzone="#dropzone-promo"');?>
<div class="fallback">
<input type="file" name="userfile" size="20" />
</div>
</form>
<?php echo form_open_multipart('uploads/do_upload', 'class="dropzone", id="dropzone-promo", data-nextFormExecDropzone="#dropzone-plan"');?>
<div class="fallback">
<input type="file" name="userfile" size="20" />
</div>
</form>
<?php echo form_open_multipart('uploads/do_upload', 'class="dropzone", id="dropzone-plan"');?>
<div class="fallback">
<input type="file" name="userfile" size="20" />
</div>
</form>
<div class="col-lg-4">
<button id="processQueue" class="btn btn-primary" type="button"><i class="fa fa-upload"></i>Start Upload</button>
</div>
当用户点击按钮时，我有一个javascript代码，它会向每个表单发送我想要的顺序。在我的控制器中，我有以下方法（do_upload（））：
function do_upload() {
//$filePath = $this->config->item('base_current_upload_url');
$filePath = APPPATH.'UPLOADS/';
$filePathAfterUploaded = $this->config->item('base_uploaded_url');
$config['upload_path'] = $filePath;
$config['allowed_types'] = '*';
$config['max_size'] = 1024 * 100;
$this->load->library('upload', $config);
//$this->load->library('csvreader');
//$filePathAfterUploaded = $this->config->item('base_uploaded_url');
//print_r($filePath); die();
$basefilepath = APPPATH.'UPLOADS/';
$this->load->model('uploads_m');
if ( ! $this->upload->do_upload('file')) {
$error = array('error' => $this->upload->display_errors());
print_r($error);
}
else {
$data = array('upload_data' => $this->upload->data());
print_r($data); die();
}
}
问题：
我需要上传这3个文件。如果只有一个不见了，我就不能继续了。通过这种方式，在上传每个文件的过程中都会调用函数do_upload，所以我需要找到一种方法来识别这3个文件是否已上传。（之后，我将使用mysql‘load data infile’将这些文件中的数据加载到一些表中，但只有上传了这三个文件，我才能做到这一点。你能帮我找到处理这种情况的方法吗？
每次调用do_uplaod时$data的结构如下：
Array
(
[upload_data] => Array
(
[file_name] => PROMOWEB111120131.txt
[file_type] => text/plain
[file_path] => C:/Program Files/EasyPHP-DevServer-13.1VC9/data/localweb/projects/integration/www/application/UPLOADS/
[full_path] => C:/Program Files/EasyPHP-DevServer-13.1VC9/data/localweb/projects/integration/www/application/UPLOADS/PROMOWEB111120131.txt
[raw_name] => PROMOWEB111120131
[orig_name] => PROMOWEB11112013.txt
[client_name] => PROMOWEB11112013.txt
[file_ext] => .txt
[file_size] => 2.67
[is_image] =>
[image_width] =>
[image_height] =>
[image_type] =>
[image_size_str] =>
)
)
如果do_upload是一个独立的函数，那么引入一个统计调用次数的静态变量。
function do_upload () {
static $count = 0;
// The rest of your function goes here
if (no_errors_occurred) {
static::$count++;
}
if ($count == 3) {
// This function has been called 3 times; trigger something here
}
}
更好的是，如果是在课堂上。。。
class MyClass {
protected static $data = array ();
// Other functions and properties
public function do_upload () {
// The rest of your function
if (no_errors_occurred) {
static::$data[] = array (
'upload_data' => array (
'file_name' => ...,
// Populate the data array
)
);
}
$this->do_mysql_load_data_infile();
}
protected function do_mysql_load_data_infile () {
if (count(static::$data) != 3) {
return false;
}
// Do MySQL load data infile
// Get information about file uploads by accessing the static::$data array
foreach (static::$data as $file) {
echo $file['upload_data']['file_name'];
}
}
}