An uncaught Exception was encountered , Type: RuntimeException - codeigniter-3

Question

Unable to locate the model you have specified: User_model
Filename: /opt/lampp/htdocs/ci/system/core/Loader.php
Line Number: 348
Backtrace:
File: /opt/lampp/htdocs/ci/index.php
Line: 315
Function: require_once
i tried to change name but it dose not work....
this code model
db->where(array(
'username' => $username,
'password' => $password
));
$result = $this->db->get('users');
if($result->num_rows()==1 ){
$return->$result->row(0)->id;
}else {
return false ;
}
}
}
?>

Answer 1

Make sure in model folder, the file name starts with Capital and very important point is "Change the model name to some "Reg_model.php" etc and update the controllers file accordingly.. This will surely works !!!
In controllers also use capital letter for the file name
NOTE: dont use the file names like Register_model.php etc , Instead use Reg_model.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Welcome extends CI_Controller {
function __construct()
{
parent::__construct();
}
public function index()
{
$this->register();
}
public function register()
$json = json_decode(file_get_contents('php://input'), TRUE);
$name= $json['name'];
$email = $json['email'];
$password = $json['password'];
echo $name; echo $email; echo $password;
$this->load->model('Reg_model');
$red= $this->Reg_model->registeration($name,$email,$password);
// echo 'controller23'; die();
$insert_id = $this->db->insert_id();
if($insert_id!==""){
$sql = "SELECT * FROM `users` where uid='$insert_id'";
$query = $this->db->query($sql);
$array1 = $query -> row();
echo json_encode($array1);}else{} }
public function login(){
$json = json_decode(file_get_contents('php://input'), TRUE);
$password = $json['password'];
$email = $json['email'];
$resp= $this->db->get_where('users', array('email'=>$email, 'password'=>$password))->row();
if($resp==""){ echo 'incorrect email or password'; }else
{
echo 'login success';
echo json_encode($resp);
}
}
}