can't upload image codeigniter no error - codeigniter

Question

I have a problem while uploading image files.
This my view file contents
<form action="<?php base_url()."profile/upload"?>" method="POST" enctype="multipart/form-data" >
<input type="hidden" name="id_akun" value="<?php echo $query->id_akun?>"size="20" />
<input type="file" name="userfile" required>
<input type="submit" name="submit" value="Upload" class="btn btn-success" />
</form>
Here is my controller (profile)
public function upload() {
$config = array(
'upload_path' => dirname($_SERVER["SCRIPT_FILENAME"])."/upload/",
'upload_url' => base_url()."upload/",
'allowed_types' => "gif|jpg|png|jpeg|pdf",
'overwrite' => false,
'max_size' => "2048000",
'max_height' => "768",
'max_width' => "1024"
);
$this->load->library('upload', $this->config);
if($this->upload->do_upload()) {
echo "file upload success";
} else {
echo "file upload failed";
}
}
When I try an upload, the image did not get upload, and there is no error shown. URL in my address bar looks like this
http://localhost/mataramtest/profile?id_akun=6&userfile=1.PNG&submit=Upload

Answer 1

There are several issues on your code. Revised and given below
public function upload()
{
$config = array(
'upload_path' => "./upload/",
'allowed_types' => "gif|jpg|png|jpeg|pdf",
'overwrite' => false,
'max_size' => "2048000",
'max_height' => "768",
'max_width' => "1024"
);
$this->load->library('upload', $config);
if($this->upload->do_upload('userfile'))
{
echo "file upload success";
}
else
{
echo "file upload failed";
}
}
In view file
<form action="<?php echo site_url("profile/upload");?>" method="POST" enctype="multipart/form-data" >
<!--rest of the code is ok-->

Answer 2

public function img_upload()
{
$config = array(
'upload_path' => "uploads",
'allowed_types' => "*",
'overwrite' => TRUE,
'max_size' => "5048000", // Can be set to particular file size , here it is 2 MB(2048 Kb)
'max_height' => "3000",
'max_width' => "3000"
);
$this->upload->initialize($config);
$this->load->library('upload', $config);
if($this->upload->do_upload()) {
$response = array('upload_data' => $this->upload->data());
}
else{
$error = array('error'=>$this->upload->display_errors());
print_r($error);
}
}