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Introduction to User Authentication in PHP

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Verify Authentication

3:52 with Alena Holligan

In functions_auth.php we'll create a new function named isAuthenticated. This function will need to read our session to know if a user is logged in.

Verify isAuthenticated

File: templates/nav.php

<?php if (isAuthenticated()) : ?>
    <li><a href="/add.php">Add Book</a></li>
<?php endif; ?>

<?php if (isAuthenticated()) : ?>
    <li><a href="/procedures/doLogout.php">Logout</a></li>
<?php else: ?>
    <li><a href="/login.php">Login</a></li>
    <li><a href="/register.php">Register</a></li>
<?php endif; ?>

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    a New File named functions_auth.php. 0:00
    We'll also need to add this file to our bootstrap file. 0:02
    Duplicate that line and we'll change it to auth and then we can close it. 0:08
    In our functions_auth file, 0:14
    we're ready to create a new function. 0:18
    We'll name this isAuthenticated. 0:22

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