uploading multiple image in codeigniter using same input - codeigniter

Question

views
<form action="" method="POST" enctype="multipart/form-data">
<input type="file" name="userfile[]" size="40" multiple/>
<input type="submit" name="submit" value="Upload">
</form>
controller
public function image()
{
$data['error'] = '';
$this->load->model('StackM');
if(isset($_POST['submit']))
{
$data['update_pass_error_msg'] = $this->StackM->add_multiple_image();
}
$this->load->view('stack_view');
}
Model
public function add_multiple_image(){
if((!empty($_FILES['f2']['name'])))
{
$config['upload_path'] = 'uploads/';
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$files = $_FILES;
if ($files['f2']['name'][0] == '' )
{
# code...
return "Select a file to upload";
}
else
{
$mum_files = count($files['f2']);
for($i=0; $i<$mum_files; $i++)
{
if ( isset($files['f2']['name'][$i]) )
{
$config['file_name'] = time().'-'.$files['f2']['name'][$i];
$this->load->library('upload', $config);
$_FILES['f2']['name']= $files['f2']['name']["$i"];
$_FILES['f2']['type']= $files['f2']['type']["$i"];
$_FILES['f2']['tmp_name']= $files['f2']['tmp_name']["$i"];
$_FILES['f2']['error']= $files['f2']['error']["$i"];
$_FILES['f2']['size']= $files['f2']['size']["$i"];
$filename = rand().'-'.$_FILES['f2']['name'];
if (!empty($this->upload->do_upload('f2')))
{
$dataInfo[] = $this->upload->data();
$all_imgs = '';
if ( count($dataInfo) > 0) {
# code...
foreach ($dataInfo as $info) {
# code...
$all_imgs .= $info['file_name'];
$all_imgs .= ',';
}
}
}
}
}
}
}
else{
$all_imgs = "";
}
}
}
else{
$all_imgs = $this->session->userdata('image');
}
$this->db->insert('table_name', $all_imgs);
The problem I am facing in this code is Think suppose if I am adding 7 images, but it's showing only 5 images in database it's not taking more then five and also I want to know while editing the form if I don't want to change the image then it should remain same image so i have stored the old image in session and checking if it is empty then only it should session variable .
But In my code if I will not upload new one If I keep old image as then it will save blank

Answer 1

To avoid the offset error, inside of for loop you need to check if that array index is set or not:
Here I have a demo code to upload multiple files in CodeIgniter:
views/stack_view.php
<?php if ($this->session->flashdata('status')) { ?>
<h5><?=$this->session->flashdata('status')?>: <?=$this->session->flashdata('message')?></h5>
<?php } ?>
<?=form_open_multipart('stack', array('id' => 'my_id'))?>
<input type="file" name="userfile[]" size="40" multiple/>
<input type="submit" name="submit" value="Upload">
<?=form_close()?>
controllers/Stack.php
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Stack extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->library('session');
$this->load->helper(array('form', 'url'));
}
public function index()
{
if ($this->input->post('submit')) {
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$files = $_FILES;
if ($files['userfile']['name'][0] == '' ) {
# code...
$this->session->set_flashdata('status', 'error');
$this->session->set_flashdata('message', "Select a file to upload");
}
else
{
$mum_files = count($files['userfile']);
$dataInfo = array();
for($i=0; $i<$mum_files; $i++)
{
if ( isset($files['userfile']['name'][$i]) ) {
$config['file_name'] = time().'-'.$files['userfile']['name'][$i];
$this->load->library('upload', $config);
$_FILES['userfile']['name']= $files['userfile']['name']["$i"];
$_FILES['userfile']['type']= $files['userfile']['type']["$i"];
$_FILES['userfile']['tmp_name']= $files['userfile']['tmp_name']["$i"];
$_FILES['userfile']['error']= $files['userfile']['error']["$i"];
$_FILES['userfile']['size']= $files['userfile']['size']["$i"];
$filename = rand().'-'.$_FILES['userfile']['name'];
if ( ! $this->upload->do_upload('userfile'))
{
$error_message = $this->upload->display_errors();
$this->session->set_flashdata('status', 'error');
$this->session->set_flashdata('message', "$error_message");
}
else
{
//$data = array('upload_data' => $this->upload->data());
$this->session->set_flashdata('status', 'success');
$this->session->set_flashdata('message', "Files upload is success");
}
$dataInfo[] = $this->upload->data(); //all the info about the uploaded files are stored in this array
}
}
//here you can insert all the info about uploaded file into database using $dataInfo
$all_imgs = '';
if ( count($dataInfo) > 0) {
# code...
foreach ($dataInfo as $info) {
# code...
$all_imgs .= $info['file_name'];
$all_imgs .= ',';
}
}
$insert_data = array(
'your_column_name' => rtrim($all_imgs,",")
);
$this->db->insert('your_table_name', $insert_data);
}
}
$this->load->view('stack_view');
}
}
Try this script and I hope you will get some help from this.

Answer 2

This is working script try to upload it
public function upload()
{
$this->load->library('session');
if ( ! empty($_FILES))
{
$config['upload_path'] = "assets/uploads/";
$config['allowed_types'] = 'jpg|png|jpeg';
$config['max_size'] = 5120; //limit only 5 Mb
$this->load->library('upload');
$files = $_FILES;;
$number_of_files = count($_FILES['files']['name']);
$errors = 0;
$myname = $this->input->post('ad_title');
for ($i = 0; $i < $number_of_files; $i++)
{
//$randVal = rand(450,4550).time('d-y-m');
$filename = basename($files['files']['name'][$i]);
$extension = pathinfo($filename, PATHINFO_EXTENSION);
$new = md5($filename.''.time('d-y-m')).'.'.$extension;
$_FILES['files']['name'] = $new; //$files['files']['name'][$i];
$_FILES['files']['type'] = $files['files']['type'][$i];
$_FILES['files']['tmp_name'] = $files['files']['tmp_name'][$i];
$_FILES['files']['error'] = $files['files']['error'][$i];
$_FILES['files']['size'] = $files['files']['size'][$i];
$image = array('upload_data' => $this->upload->data());
$image_name = $_FILES['files']['name'];
$ip = $this->input->ip_address();
$this->session->set_userdata("userIP",$ip);
//$this->session->unset_userdata("userIP");
$Dval = array(
"filename" => $image_name,
"ip" => $this->input->ip_address()
);
$this->member_model->tmp_image($Dval);
$this->upload->initialize($config);
if ( $this->upload->do_upload("files"))
{
$errors++;
$data = $this->upload->data();
echo json_encode($data['file_name']);
//code is for thumbnail and watermark on images
//$this->watermark($data['full_path']);
//$myPathfT = $config1['upload_path'] = "./assets/thumbs/".$aDir;
//mkdir($myPathfT);b
$config1 = array();
$config1['image_library'] = 'gd2';
$config1['source_image'] = $data['full_path'];
$config1['new_image'] = 'assets/uploads/thumbs/';
$config1['create_thumb'] = false;
$config1['quality'] = 50;
$config1['height'] = 150;
$config1['width'] = 150;
$this->load->library('image_lib',$config1);
$this->image_lib->initialize($config1);
$this->image_lib->resize();
$this->image_lib->clear();
}
}
if ($errors > 0)
{
//echo "Data Transferred";
}
}
elseif ($this->input->post('file_to_remove'))
{
$aDir = $this->session->userdata('Dir');
$file_to_remove = $this->input->post('file_to_remove');
unlink("./assets/mainFilesData/$aDir/" . $file_to_remove);
$array = $this->session->userdata('photo');
$dataF = array_diff($array, array($file_to_remove));
$this->session->set_userdata('photo',$dataF);
}
else
{
$this->listFiles();
}
}