login/logout, config, session inactivity codes in php

Question

I have a php file admin_trace.php in which I have integrated everything (config, session inactivity, login/logout, username/password verification and JS codes).

The php file admin_trace.php belongs to the following url http://example.com/admin_trace.php (let us suppose)

In the php file admin_trace.php , I have

a. database configuration code

b. session inactivity code (which forces logout of the page when there is no activity)

c. login/logout code

d. username/password verification code

e. if user is not logged in then it it will display the login page .

// Is user logged in?
<?php
if(!isset($_SESSION['pageadmin'])){ ?>
    <form action="/admin_trace.php" method="post">
        <div style='width:350px;'>
            <fieldset>
                <legend>Login</legend>
                <div>
                    <label for="user_name">User Name</label>
                    <input type="text" name="user_name">
                </div>
                <div>
                    <label for="user_pass">Password</label>
                    <input type="password" name="user_pass">
                </div>
                <div>
                    <button type="submit">Login</button>
                </div>
            </fieldset>
        </div>
    </form>
    <?PHP } else { ?>

f. JS code at the bottom

The issue which I am having right now that all my codes are in one file admin_trace.php which is making things difficult and making some part of the code (like JS) not working

Problem Statement:

I am wondering what would be the best way to architect any login form page that has config code , session inactivity code , login/logout code , username/password verification code and JS code . When I say architect I meant to say the relative locations of the files w.r.t. to admin_trace.php where config code , session inactivity code , login/logout code , username/password code etc will be placed.

Answer 1

PHP has the ability to split code into multiple files. You can bring this code in conditionally with if statements via the include and require statements (and corresponding include_once and require_once .