My user profile picture registration is not working on CodeIgniter - php

Question

I made a user registration form on the CodeIgniter framework so users can registrate to my website. Now the only thing that doesn't work is that I cant upload a profile picture. When I click on the register button I'm getting 2 errors. I want the profile picture to be uploaded in the product_foto column.
This is my view file: (register.php) :
<form action="" method="POST" enctype='multipart/form-data'>
<div class="form-group">
<label for="voornaam">Voornaam</label>
<input class="form-control" name="voornaam" id="voornaam" type="text">
</div>
<div class="form-group">
<label for="achternaam">Achternaam</label>
<input class="form-control" name="achternaam" id="achternaam" type="text">
</div>
<div class="form-group">
<label for="achternaam">Straat en huisnummer</label>
<input class="form-control" name="straat" id="straat" type="text">
</div>
<div class="form-group">
<input class="form-control" name="huisnummer" id="huisnummer" type="text">
</div>
<div class="form-group">
<label for="huisnummer">Huisnummer</label>
<input class="form-control" name="huisnummer" id="huisnummer">
</div>
<div class="form-group">
<label for="postcode">Postcode</label>
<input class="form-control" name="postcode" id="postcode">
</div>
<div class="form-group">
<label for="woonplaats">Woonplaats</label>
<input class="form-control" name="woonplaats" id="woonplaats">
</div>
<div class="form-group">
<label for="email">Email adres</label>
<input class="form-control" name="email" id="email" type="emai">
</div>
<div class="form-group">
<label for="wachtwoord">Wachtwoord</label>
<input class="form-control" name="wachtwoord" id="wachtwoord" type="password">
</div>
<div class="form-group">
<label for="wachtwoord">Herhaal wachtwoord</label>
<input class="form-control" name="wachtwoord2" id="wachtwoord" type="password">
</div>
<div class="form-group">
<label for="profiel_foto">Profiel foto</label>
<input class="form-control" type="file" name="profiel_foto" id="profiel_foto">
</div>
<div class="form-group">
<label for="beschrijving">Beschrijving</label>
<input class="form-control" name="beschrijving" id="beschrijving">
</div>
<div class="form-group">
<label for="geboortedatum">Geboortedatum</label>
<input class="form-control" name="geboortedatum" id="geboortedatum" type="date">
</div>
<div class="form-group">
<label for="geslacht">Geslacht</label>
<select class="form-control" id="geslacht" name="geslacht">
<option value="Man">Man</option>
<option value="Vrouw">Vrouw</option>
</select>
</div>
<div>
<button class="btn btn-primary" name="register">Registreren</button>
</div>
</form>
This is the register code in the controller:
public function register() {
$config['upload_path'] = './upload/';
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$this->load->library('upload', $config);
$this->input->post('profiel_foto');
$data_upload_files = $this->upload->data();
$image = $data_upload_files['./upload/'];
//voeg gebruiker toe aan database
$data = array(
'voornaam' => $_POST['voornaam'],
'achternaam' => $_POST['achternaam'],
'email' => $_POST['email'],
'wachtwoord' => ($_POST['wachtwoord']),
'startdatum' => date('Y-m-d'),
'postcode' => $_POST['postcode'],
'huisnummer' => $_POST['huisnummer'],
'woonplaats' => $_POST['woonplaats'],
'beschrijving' => $_POST['beschrijving'],
'geboortedatum' => $_POST['geboortedatum'],
'geslacht' => $_POST['geslacht'],
'profiel_foto' => $image
);
$this->db->insert('users', $data);
$this->session->set_flashdata("success", "Uw account is nu geregistreerd, u kunt nu inloggen");
redirect("auth/register", "refresh");
}
And these are the 2 errors I'm getting when I'm trying to registrate:
PHP Error was encountered
Severity: Notice
Message: Undefined index: ./upload/
Filename: controllers/Auth.php
Line Number: 131
Backtrace:
File: /home/ubuntu/workspace/application/controllers/Auth.php
Line: 131
Function: _error_handler
File: /home/ubuntu/workspace/index.php
Line: 315
Function: require_once
A Database Error Occurred
Error Number: 1048
Column 'profiel_foto' cannot be null
INSERT INTO `users` (`voornaam`, `achternaam`, `email`, `wachtwoord`, `startdatum`, `postcode`, `huisnummer`, `woonplaats`, `beschrijving`, `geboortedatum`, `geslacht`, `profiel_foto`) VALUES ('hallo', 'hallo', 'hallo#gmail.com', 'hallo', '2017-06-28', 'hallo', 'hallo', 'hallo', 'hallo', '2017-06-10', 'Man', NULL)
Filename: controllers/Auth.php
Line Number: 149

Answer 1

Your First error is being caused by:
$image = $data_upload_files['./upload/'];
As stated './upload/' is not a valid index nor is an existing one in that array. It's not clear where you have defined that.
Next: What does this line do?
$this->input->post('profiel_foto');
Next: Debug: Inspect your array $data prior to the insert and check it.
// Snip of other code
$data = array(
'voornaam' => $_POST['voornaam'],
'achternaam' => $_POST['achternaam'],
'email' => $_POST['email'],
'wachtwoord' => ($_POST['wachtwoord']),
'startdatum' => date('Y-m-d'),
'postcode' => $_POST['postcode'],
'huisnummer' => $_POST['huisnummer'],
'woonplaats' => $_POST['woonplaats'],
'beschrijving' => $_POST['beschrijving'],
'geboortedatum' => $_POST['geboortedatum'],
'geslacht' => $_POST['geslacht'],
'profiel_foto' => $image
);
$this->db->insert('users', $data);
var_dump($data);
exit();
// Snip of other code
And read the user guide as I stated above in my comments... Cause I aint writing that out here for you... That should get you started.