我对 codeigniter 库和函数还很陌生。最近，我有一个表单，其中有一些动态输入字段需要提交并插入数据库以进行记录。
如果用户单击“+”按钮，则动态创建图像上传文件字段，并且我使用数组名称作为输入字段的名称。但是，当我尝试调用 Controller 上传文件或插入数组字段名称时，它不断提示我“您没有选择要上传的文件”。
如果我将图像字段的输入名称更改为仅“reg_photo”，并将上传字段名称更改为“reg_photo”，那么一切正常，但这不是我想要的，因为我想根据动态输入数组上传它。
我确实尝试在 stackoverflow 和 google 上查看解决方案，但在我尝试之后，没有一个可以帮助我。
这是我用于上传的 Controller :
//Upload Picture Configuration
$config['upload_path'] = './uploads/profile_picture/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 2048;
$config['max_width'] = 1920;
$config['max_height'] = 1080;
$this->load->library('upload', $config);
//Check and get the Areas list
$areaList = $this->input->post('areas', true);
$finalSeparator = $areaList;
$resultArea = "";
foreach ($finalSeparator as $i => $a) {
if (next($finalSeparator )) {
$resultArea .= $a.','; // Add comma for all elements instead of last
}
else
{
$resultArea .= $a;
}
}
if ($this->input->post('reg_name')) { // returns false if no property
//Get Last Inserted District ID
$district = "";
$failedUploadNameList = "";
$photoPath = "";
$data = array(
'district_code' => $this->input->post('reg_district_2', true),
'district_country' => '',
);
$this->db->set('district_registered_date', 'NOW()', FALSE); //Submit current date time
if($this->Registerlanguage_admin_model->register_district($data))
{
$district = $this->db->insert_id(); //Last Get ID
$name = $this->input->post('reg_name', true);
$year1 = $this->input->post('reg_year1', true);
$year2 = $this->input->post('reg_year2', true);
$nickname = $this->input->post('reg_nickname', true);
$photo = $this->input->post('reg_photo', true);
foreach ($name as $i => $a) { // need index to match other properties
//Check to whether can upload image or not
if ( ! $this->upload->do_upload($photo[$i]))
{
$error = array('error' => $this->upload->display_errors());
foreach($error as $q)
{
$failedUploadNameList .= $q;
}
}
else
{
$data = array('upload_data' => $this->upload->data('file_name'));
foreach($data as $a)
{
$photoPath = $config['upload_path'].$a;
}
}
$data = array(
'area_district_id' => $district,
'area_name' => $resultArea,
'area_language' => $this->input->post('reg_language', true),
'area_year_1' => isset($year1[$i]) ? $year1[$i] : '',
'area_year_2' => isset($year2[$i]) ? $year2[$i] : '',
'area_leader_name' => isset($name[$i]) ? $name[$i] : '',
'area_leader_nickname' => isset($nickname[$i]) ? $nickname[$i] : '',
'area_leader_photo' => $photoPath
);
$this->db->set('area_registered_date', 'NOW()', FALSE); //Submit current date time
if (!$this->Registerlanguage_admin_model->register_area($data)) {
// quit if insert fails - adjust accordingly
$this->session->set_flashdata('msg','<div class="alert alert-danger text-center">Oops! Error. Please try again later!!!</div>');
redirect('index.php/language_admin/index');
}
}
}
else{
// don't redirect inside the loop
$this->session->set_flashdata('msg','<div class="alert alert-danger text-center">Oops! Error. Please try again later!!!</div>');
redirect('index.php/language_admin/index');
}
//Redirect back once all successfully insert
$this->session->set_flashdata('msg','<div class="alert alert-success text-center">You are Insert Successfully!</div>'.$failedUploadNameList);
redirect('index.php/language_admin/index');
}
else{
// don't redirect inside the loop
$this->session->set_flashdata('msg','<div class="alert alert-danger text-center">Oops! Error. Please try again later!!!</div>');
redirect('index.php/language_admin/index');
}
这是我的 View 代码:
<?php $attributes = array("name" => "registerdistrictform");
echo form_open_multipart("index.php/registerlanguage_admin/registerDistrict", $attributes);?>
<div class="panel panel-default">
<div class="panel panel-info">
<div class="panel-body panel-group">
<div class="form-group">
<input class="form-control" name="reg_language" type="hidden" value="Japanese" />
<label for="concept" class="col-sm-3 control-label">District ：</label>
<div class="col-sm-9">
<input class="form-control" name="reg_district_1" placeholder="Ex : District 3500" type="text" value="<?php echo set_value('reg_district_1'); ?>" required/>
<span class="text-danger"><?php echo form_error('reg_district_1'); ?></span><br/>
<input class="form-control" name="reg_district_2" placeholder="Ex : 3500" type="text" value="<?php echo set_value('reg_district_2'); ?>" required/>
<span class="text-danger"><?php echo form_error('reg_district_2'); ?></span><br/>
</div>
</div>
<div class="form-group">
<label for="concept" class="col-sm-3 control-label">Area ：</label>
<div id="areaContainer">
<div class="col-sm-6">
Area Record #0<input class="form-control" name="areas[]" placeholder="Your Language" type="text" value="" required/>
</div>
<div class="col-sm-3">
<a href="#" class="btn btn-primary" id="addArea">+</a><br/>
</div>
</div>
</div>
</div>
</div>
<div id = "profileContainer">
<div class="panel panel-danger">
<div class="panel-heading">Profile #0</div>
<div class="panel-body panel-group">
<div class="form-group">
<label for="concept" class="col-sm-3 control-label">Years ：</label>
<div class="col-sm-4">
<input class="form-control" name="reg_year1[]" placeholder="2015" type="text" value="" required/>
</div>
<div class="col-sm-1">
<i class="fa fa-arrow-right" aria-hidden="true" ></i>
</div>
<div class="col-sm-4">
<input class="form-control" name="reg_year2[]" placeholder="2017" type="text" value="" required/><br/>
</div>
</div>
<div class="form-group">
<label for="concept" class="col-sm-12 control-label"><u>District Governer</u></label><br/>
<label for="concept" class="col-sm-3 control-label">Name ：</label>
<div class="col-sm-9">
<input class="form-control" name="reg_name[]" placeholder="Your Language" type="text" required/><br/>
</div>
<label for="concept" class="col-sm-3 control-label">Nickname ：</label>
<div class="col-sm-9">
<input class="form-control" name="reg_nickname[]" placeholder="English" type="text" required/><br/>
</div>
<label for="concept" class="col-sm-3 control-label">Photo ：</label>
<div class="col-sm-9">
<input class="form-control" name="reg_photo[]" type="file" required/><br/>
</div>
</div>
<div class="pull-right">
<a href="#" class="btn btn-primary" id="addProfile">+</a>
</div>
</div>
</div>
</div>
<div class="panel-body panel-group">
<div class="form-group">
<div class="col-sm-1 text-left">
<button name="submit" type="submit" class="btn btn-info btn-lg" >Submit</button>
<!-- <button name="cancel" type="reset" class="btn btn-info">Cancel</button>-->
</div>
</div>
</div>
</div>
<?php echo form_close(); ?>
</div>
如果用户按“+”按钮，“reg_photo[]”会动态插入到 HTML 中，因此，如果我更改为不再动态的“reg_photo”，那么它就可以工作，如果我想使用'reg_photo[]' 作为字段名称来上传我的文件？请引导我完成这个过程。感谢! :)
最佳答案
/*
* Code above omitted purposely
* In your HTML form, your input[type=file] must be named *upl_files[]*
*/
/*
* Uploads multiple files creating a queue to fake multiple upload calls to
* $_FILE
*/
public function multiple_upload()
{
$this->load->library('upload');
$number_of_files_uploaded = count($_FILES['upl_files']['name']);
// Faking upload calls to $_FILE
for ($i = 0; $i < $number_of_files_uploaded; $i++){
$_FILES['userfile']['name'] = $_FILES['upl_files']['name'][$i];
$_FILES['userfile']['type'] = $_FILES['upl_files']['type'][$i];
$_FILES['userfile']['tmp_name'] = $_FILES['upl_files']['tmp_name'][$i];
$_FILES['userfile']['error'] = $_FILES['upl_files']['error'][$i];
$_FILES['userfile']['size'] = $_FILES['upl_files']['size'][$i];
$config = array(
'file_name' => <your ouw function to generate random names>,
'allowed_types' => 'jpg|jpeg|png|gif',
'max_size' => 3000,
'overwrite' => FALSE,
/* real path to upload folder ALWAYS */
'upload_path'
=> $_SERVER['DOCUMENT_ROOT'] . '/path/to/upload/folder'
);
$this->upload->initialize($config);
if ( ! $this->upload->do_upload()) {
$error = array('error' => $this->upload->display_errors());
$this->load->view('upload_form', $error);
}else {
$final_files_data[] = $this->upload->data();
// Continue processing the uploaded data
}
}
}
这对我有用。请参阅此页面，这不是我的代码 https://gist.github.com/zitoloco/1558423
关于javascript - Codeigniter上传带有数组字段名称的图像文件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44449615/