如何使用php使用include / require访问类？

Question

I set up all the basic setup for Codeigniter Framework.

My Code:

controllers/index.php:

include "file_name.php"; //In my case APPPATH . "controllers/user/user_data.php"

controllers/user/file_name.php: //In my case controllers/user/user_data.php

<?php 

    echo "Welcome";

    class File_name 
    {
        function index()
        {
            echo "this is index";
            # code...
        }
    }

Output: What I getting:

welcome

What I need:

welcome this is index

My problem is I have file_path instead of file_name in include, so I am unable to create Object for the file.?

Answer 1

echo "Welcome ";
$fileName = new File_name();
$fileName->index(); 

Answer 2

In your index.php file:

include "file_name.php";
$file_name_obj = new File_Name();
$file_name_obj->index();

In your file_name.php file change:

function index()

to:

public function index ()

Answer 3

if your trying to include a file, be sure to remember that your using a framework, CI. the proper way of including a file using codeigniter is using the "$this->load->view('name of file');" method, because , there are instance that using the include cause an error because it use preferably for pure php style not framework style.