SAe-PHP-S2/application/controllers/Music.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Music extends CI_Controller {

    public function __construct(){
        parent::__construct();
        $this->load->model('model_music');
        $this->load->library('session');
    }

    public function index(){
        $genre = $this->input->get('genre');
        $order = $this->input->get('order');
        $artist = $this->input->get('artist');
        $query = $this->input->get('query');

        $musics = $this->model_music->getMusics($genre, $order, $artist, $query);
        $genres = $this->model_music->researchtype();
        $artists = $this->model_music->nameArtist();

        $is_logged_in = $this->session->userdata('logged_in');
        $data = array(
            'musics' => $musics,
            'genres' => $genres,
            'artists' => $artists,
            'is_logged_in' => $is_logged_in
        );

        $this->load->view('layout/header', $data);
        $this->load->view('layout/getter', $data);
        $this->load->view('musiques_list', $data);
        $this->load->view('layout/footer');
    }

    public function view($trackId) {
        $songData = $this->model_music->getSongDetails($trackId);

        $is_logged_in = $this->session->userdata('logged_in');
        $data = array(
            'song' => $songData,
            'is_logged_in' => $is_logged_in
        );

        $this->load->view('layout/header', $data);
        $this->load->view('song_details', $data);
        $this->load->view('layout/footer');
    }
}