PHP: How to get File Name & Extension of uploaded file in Codeigniter? - php

Question

i need to store only filename + extension of file when upload and rename done to my databse.my problem is can't get extension.
$new_file_name=date("mdY")."_".time();
$config['upload_path'] = './assets/images/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 2048;
$config['max_width'] = 1024;
$config['max_height'] = 768;
$config['file_name'] = $new_file_name;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('uploadFile'))
{
$error = array('error' => $this->upload->display_errors());
var_dump($error);
}
else
{
$data = array('upload_data' => $this->upload->data());
var_dump($data);
echo $config['file_name'] . $config['file_ext'];
}
my next question load helper form for ? or need load form to use library form_validation ?
$this->load->helper(array('form')); for ?
$this->load->library('form_validation'); this for validation rule

Answer 1

custom upload filename codeigniter
first you can to explode with (.) in filename, then you get array, then catch the end array with function end().
and last i can to join filename with this date.
$dname = explode(".", $_FILES['gambar']['name']);
$ext = end($dname);
$_FILES['gambar']['name'] = strtolower('fitur_h_'.date('YmdHis').'.'.$ext);
//fitur_h_20200120143157.png //output filename
i hope my answer can help you

Answer 2

After you uploaded the file, you can get its property by:
$saved_file_name = $this->upload->data('file_name');
// will give you the filename along with the extension
If you want to get the file extension before uploading it, use core php:
$file_ext = pathinfo($_FILES["file"]["name"], PATHINFO_EXTENSION);
or to make it clean
$filename= $_FILES["file"]["name"];
$file_ext = pathinfo($filename,PATHINFO_EXTENSION);

Answer 3

Simply use the below code for image name with extension on post to solve issue,
$config['file_name'].$this->upload->data('file_ext')

Answer 4

I was having the same problem and i just figured it out.
I was trying to get the name with this: $this->upload->data('file_name');
but it was always empty, and i just finded out that you need to set something before you can access the data() array.
When your code successfully uploads the file, type this: $data = array('upload_data' => $this->upload->data());
after that, all the data() indexes will be accessible, 'file_name' included. The list with all indexes is in the documentation: https://codeigniter.com/user_guide/libraries/file_uploading.html#preferences
ps: I know it's been 2 years since this post but maybe someone can find it helpful if they stuck with this too.

Answer 5

I know this is too late, still I'm giving the answer.
If you want to get the image extension, then use pathinfo function with PATHINFO_EXTENSION parameter.
eg.
$imageExtention = pathinfo($_FILES["image"]["name"], PATHINFO_EXTENSION);
echo imageExtention;

Answer 6

you can get file name using this code
$file_name = $data['file_name'];
echo $file_name;
and extension for file
$ext = implode('.',$file_name);
echo $ext[1];