How to upload image file using codeigniter? - codeigniter

Question

I want upload image file on server & want to stored image in database.
How can I store image file in database & also get the image file from database. Please help to solved this problem.
i have done this code in project..
but when uploading image on server upload_path not found.
In controller
$config['upload_path'] = base_url().'aplication/upload/'; // the uploaded images path
$config['allowed_types'] = 'jpg|jpeg|png';/*types of image extentions allowed to be uploaded*/
$config['max_size'] = '3048';// maximum file size that can be uploaded (2MB)
$this->load->library('upload',$config);
if ( ! is_dir($config['upload_path']) ) /* this checks to see if the file path is wrong or does not exist.*/
{
echo( $config['upload_path']);
die("THE UPLOAD DIRECTORY DOES NOT EXIST"); // error for invalid file path
$this->load->library('upload',$config); /* this loads codeigniters file upload library*/
}
if ( !$this->upload->do_upload() )
{
$error=array('error'=>$this->upload->display_errors());
//echo "UPLOAD ERROR ! ".$this->upload->display_errors(); //image error
// $this->load->view('main_view',$error);
}
else
{
$file_data=$this->upload->data();
$data['img']=base_url().'.application/upload/'.$file_data['file_name'];
echo("Image upload successfully..");
//================================================
// $this->load->model('insert_model');
// $this->insert_model->submit_image();
//==========================================
//$this->insert_model->insert_images($this->upload->data());
// $this->load->model('insert_model');
//$this->insert_model->submit_image();
}

Answer 1

That is quite easy. Just create image upload function once in your controller. Here is one function I wrote:
function image_upload($path, $size, $width, $height, $new_name, $ext)
{
$config['upload_path'] = $path;
$config['allowed_types'] = 'jpg|png';
$config['max_size'] = $size;
$config['file_name'] = time() . $new_name . "." . $ext;
$config['max_width'] = $width;
$config['max_height'] = $height;
$this->load->library('upload', $config); //Load codeigniter's file upload library
if (!$this->upload->do_upload())
{
return false;
} else
{
return $config['file_name'];
}
}
Now in the action function of form where you have file input field call this function as follows do as follows:
if ($_FILES['userfile']['name'] != "")//Check if file was selected by the user
{
$ext = pathinfo($_FILES['userfile']['name'], PATHINFO_EXTENSION);//Get the extension of file
$picture_name = $this->image_upload("your/upload/directory/", 10000, 10000, 100000, "test", $ext);
//Now save this $picture_name in database
}
else
{
print_r($this->upload->display_errors());//Display errors if file does not get uploaded successfully
}
Thats it.

Answer 2

Read This, then you will get how to upload file.
Now how to store it into DB.!
In controller use this :
if ( ! $this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$this->load->view('upload_form', $error);
}
else
{
$img_data = array('upload_data' => $this->upload->data());
$full_url = "/uploads/".$img_data['upload_data']['file_name'];
$reply = $this->model_name->upload_image($full_url);
}
In model using upload_image($full_url) function store image name with path, so that you can get back that path whenever needed.