SAe-PHP-S2/application/models/User_model.php

<?php

class User_model extends CI_Model {

    public function __construct() {
        $this->load->database();
    }

    public function get_user_by_email($email) {
        $query = $this->db->get_where('user', ['email' => $email]);
        return $query->row_array();
    }

    public function create_user($data) {
        return $this->db->insert('user', $data);
    }

    public function emailExists($email) {
        $this->db->where('email', $email);
        $query = $this->db->get('user');
        return $query->num_rows() > 0;
    }
}

?>