codeigniter upload path does not appear to be valid - php

Question

Problem is When upload a image its shows same error every time "The upload path does not appear to be valid". Tried so much solution but still same problem with it..Please help.
Controller:
public function updateprofile()
{
/***get current user data***/
$this->load->model('Admin_main','userinfo');
$data=$this->userinfo->getuserdata();
$this->load->model('Admin_main','updateprofile');
$result=$this->updateprofile->updatemyprofile();
if($data->identity=='admin')
{
redirect('admin/myprofile');
}
else
{
redirect('campuser/myprofile');
}
}
Model:
if($_FILES['fileToUpload']['name']!='')
{
$config["upload_path"] = './uploads/';
$config["allowed_types"] = 'jpg|jpeg|png|gif';
$config['max_width'] = 0;
$config['max_height'] = 0;
$config['max_size'] = 0;
$config['encrypt_name'] = TRUE;
//Load upload library and initialize configuration
$this->load->library('upload',$config);
$this->upload->initialize($config);
if($this->upload->do_upload('fileToUpload')){
$uploadData = $this->upload->data();
$picture = $uploadData['file_name'];
$mypic = array('profile_pic'=>$picture);
$this->db->set($mypic);
$this->db->where('id', $userid);
$uppic=$this->db->update('mokhayam_users');
}
else
{
echo $this->upload->display_errors();
}
}
View:
<form class="form-horizontal" action="admin/updateprofile" method="post" enctype="multipart/form-data">
<div class="form-group">
<label class="col-sm-2 control-label">Profile Picture</label>
<div class="col-sm-10">
<label for="fileToUpload"><img src="assets/admin/dist/img/gul.jpg" id="blah1" class="profile-user-img img-responsive img-circle"/></label><input type="file" name="fileToUpload" id="fileToUpload" onchange="$('#blah1')[0].src = window.URL.createObjectURL(this.files[0])">
</div>
</div>
<input type="hidden" name="userid" value="2">
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-success">Submit</button>
</div>
</div>
</form>
Thanks in advance..

Answer 1

If your codeigniter version is 3.x please change library file (system/library/upload.php) version codeigniter 3.x to 2.x
and then try
$config["upload_path"] = APPPATH.'/uploads/';
......

Answer 2

Without changing anything in your library, the solution is to initialize the config just after loading the upload library in your controller, follow this code
// Upload Image
$config['upload_path'] = './uploads';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '7048';
$config['max_width'] = '7000';
$config['max_height'] = '7000';
// Create folder (Uploads) if not exists
if (!is_dir($config['upload_path'])) {
mkdir($config['upload_path']);
}
// Load library Upload
$this->load->library('upload', $config);
// Initialize the Upload library with current $config
$this->upload->initialize($config);
$this->upload->do_upload();
if ($this->upload->do_upload()) {
$data = array('upload_data' => $this->upload->data());
$page_image = $_FILES['userfile']['name'];
} else {
$errors = array('error' => $this->upload->display_errors());
$page_image = 'noimage.jpg';
}
// Set message
$this->session->set_flashdata('page_created', 'Your File(s) has been uploaded');