how can i upload images in Codeigniter - php

Question

i have problem when upload images in codeigniter, So i have controller that upload images like this :-
public function index()
{
$this->load->model('blog');
$type = "text";
if (isset($_POST['post'])) {
if (isset($_POST['type']) && $_POST['type'] == "image") {
$type = "image";
}
if (strlen($_FILES['inputUpProfile']['name']) > 0) {
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '2048';
$config['encrypt_name'] = true;
$this->load->library('upload', $config);
if (!$this->upload->do_upload('inputUpProfile')) {
$error = $this->upload->display_errors();
if (is_array($error)) {
foreach ($error as $er) {
$this->errors[] = $er;
}
} else {
$this->errors[] = $error;
}
} else {
$updata = $this->upload->data();
$imagePath = './uploads/' . $eventpic;
if (file_exists($imagePath)) {
#unlink($imagePath);
}
$eventpic = $updata['raw_name'] . $updata['file_ext'];
}
}
$result = $this->blog->addPost($_SESSION['user_id'], $type, $this->input->post('post'), $eventpic);
}
$result = $this->blog->getPosts($_SESSION['user_id'], 0, 10);
$this->template->build("home_view", array("response" => $result));
}
and view is like this :-
<div class="textstatus">
<input id="inputUpProfile" name="inputUpProfile"
class="inputUpProfile hidefile" type="file"/>
<input type="button" id="PicUpProfile" class="sentpic" value="addpic">
<input name="post" type="text" id="text" placeholder="message ...">
<input type="submit" id="sent" value="Send">
</div>
</form>
</div>
when i upload thee images in my site the error is display like :-
Severity: Notice
Message: Undefined index: inputUpProfile
Filename: controllers/home.php
Line Number: 47
and
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: eventpic
Filename: controllers/home.php
Line Number: 74
and
A PHP Error was encountered
Severity: Warning
Message: Cannot modify header information - headers already sent by (output started at D:\AppServ\www\sys\system\core\Exceptions.php:185)
Filename: core/Common.php
Line Number: 442
so where are the problem in my code.
/****************
edit :-
Array ( [upload_data] => Array ( [file_name] => 67429_133961013479569_306349156_n3.jpg [file_type] => image/jpeg [file_path] => D:/AppServ/www/d5n/rashaqa2/uploads/ [full_path] => D:/AppServ/www/d5n/rashaqa2/uploads/67429_133961013479569_306349156_n3.jpg [raw_name] => 67429_133961013479569_306349156_n3 [orig_name] => 67429_133961013479569_306349156_n.jpg [client_name] => 67429_133961013479569_306349156_n.jpg [file_ext] => .jpg [file_size] => 34.05 [is_image] => 1 [image_width] => 720 [image_height] => 540 [image_type] => jpeg [image_size_str] => width="720" height="540" ) )
i need from this array [file_name] to save in DB, how can i read this.

Answer 1

if($_FILES['nameofinputtype']['error'] == UPLOAD_ERR_OK)
{
// A file was uploaded
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
$imagen = $this->upload->do_upload();
}