Uploading file and display its name as a post - php

Question

I am trying to upload a file and replace its name with the title name, but I am unable to get the file name by echo in controller even not in as a POST in profiler.
I also need to rename it but before that I need to know the post value ie file name.
Here I am posting my code.
My view
<?php echo form_open_multipart('emailtemplate/do_upload');?>
<tr class='odd gradeX'>
<td class='center'>
<input type="file" name="userfile" size="20" />
</td>
<td class='center'>
<input placeholder='Title For Your File' name='title' class='form-control'>
<td class='center'>
<input placeholder='Comment On File' name='comment' class='form-control'>
</td>
</tr>
<input type="submit" value="upload" />
</form>
My Controller
function do_upload()
{
$this->load->helper('form');
$this->load->helper('html');
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '1000';
$config['encrypt_name'] = true;
//$file=$this->input->post('userfile');
$this->load->library('upload', $config);
$this->upload->data();
$file_name = $this->upload->do_upload('userfile');
echo $file_name;
if ( ! $this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$this->load->view('add/addfile', $error);
}
else
{
$data = array('upload_data' => $this->upload->data());
$this->load->view('add/addfile', $data);
}
$this->output->enable_profiler(true);
}

Answer 1

To rename uploaded file with POST value:
//get extension
$ext = end(explode(".", $_FILES["userfile"]['name']));
$config['file_name'] = $this->input->post("title").'.'.$ext;
Remove $config['encrypt_name'] = true;. Otherwise your file name will be encrypted .
Make sure that your title doesn't not exist in your uploaded folder. Or append some random number / characters with title.

Answer 2

I have created a function to upload the file :-
it takes argument i.e field_name
public function fileUpload($field) {
//get file extension
$exts = #split("[/\\.]", $_Files[$field][name]);
$n = count($exts) - 1;
$ext = $exts[$n];
//create image name or replace it with your desired name
$imageName = date("Ymdhis") . time() . rand();
$config['file_name'] = $imageName; //set the desired file name
$config['overwrite'] = true;
$config['allowed_types'] = str_replace(',', "|", $ext);
$config['upload_path'] = ABSOLUTEPATH . 'product/original/';
$config['optional'] = true;
$config['max_size'] = '1000';
$config['max_width'] = '00';
$this->load->library('upload', $config);
$this->upload->initialize($config);
if (!$this->upload->do_upload($field, true)) {
$error = array('error' => $this->upload->display_errors());
$r = $error;
} else {
$data = array('upload_data' => $this->upload->data());
$r = "sucess";
}
return $r;
}

Answer 3

the bellow i have written code it can be helpful you
$config['upload_path'] = './uploads/path';
$config['allowed_types'] = 'png|jpg|jpeg|gif';
$config['max_size'] = '1000000';
$config['max_width'] = '1000000';
$config['max_height'] = '1000000000';
$this->load->library('upload', $config);
$files = $_FILES;
if(isset($files['file']['name']))
{
$filename = $files['file']['name'];
$ext = end(explode(".", $filename));
$_FILES['file']['name']= date('d').date('m').date('y').'_'.date(time()).'.'.$ext; //here i am changing file name with current date as your wish to change your logic
// print_r($_FILES);exit; check the changed name
if ($this->upload->do_upload('file'))
{
$upload = array('upload_data' => $this->upload->data());
$imagename = $upload['upload_data']['file_name']; //uploaded your image name
}
else
{
$error = array('error' => $this->upload->display_errors());
print_r($error); //error
}
}

Answer 4

NOTE:Hey user3345331 , See the line
$this->upload->do_upload()
Replace With this
$this->upload->do_upload('userfile');
This userfile is the ID of Input box with filetype in your HTML code.