How can I edit navigation bar to take out a link when admin user signs in?

Question

The nav prior to sign in or register has the following links: Home, Blog, Write a Blog, Sign in, Register,

When a normal user signs in the nav links will change to: Hello (name of user), Home, Blog, Write a blog, Logout,

When the admin logs in the nav displays the following: Hello (name of user), Home, Blog, Write a blog, Admin, Logout,

My issue is I would like to remove the link 'write a blog' when the admin signs in. Any advice on how I can adapt my code to do this would be great. Below is the HTML & Php code in the header.php:

<header>
    <div class="wrap-header zerogrid">
        <div id="logo"><a href="/"><img src="/assets/images/logo_blog.png"/></a></div>
        <nav>
            <div class="wrap-nav">
                <div class="menu">
                    <ul class="list-unstyled">
                        <? if ($_SESSION['user']['first_name']): ?>
                            <li><a href="#"><i class="icon fa fa-user"></i> Hello <?= $_SESSION['user']['first_name'] ?></a></li>
                        <? endif ?>
                        <li><a href="/"><i class="icon fa fa-home"></i> Home</a></li>
                        <li><a href="/blog"><i class="icon fa fa-book"></i> Blog</a></li>
                        <li><a href="/payment"><i class="icon fa fa-pencil"></i> Write a Blog</a></li>
                         <? if ($_SESSION['user']['level'] >= 2): ?>
                            <li><a href="/admin"><i class="icon fa fa-pencil"></i> Admin</a></li>
                        <? endif ?>
                        <? if ($_SESSION['user']['first_name']): ?>
                            <li><a href="?action=logout"><i class="icon fa fa-sign-in"></i> Logout</a></li>
                        <? else: ?>
                            <li><a href="/sign_in"><i class="icon fa fa-sign-in"></i> Login</a></li>
                            <li><a href="/register"><i class="icon fa fa-pencil"></i> Register</a></li>
                            <? endif ?>
                    </ul>               
                </div>
            </div>
        </nav>
    </div>
</header>

It is probably something easy, I do tend to over complicate things! Thank you in advance.

Answer 1

Here's one approach where variables are set and validated before processing markup content. May provide a clear, clean code.

<?php

// 1. get session user object
$user   = (isset($_SESSION['user'])) ? $_SESSION['user'] : null;

// 2. set vars
if($user) {
   if(isset($user['first_name'])) {
     $first_name = $user['first_name'];
   }
   if(isset($user['level'])) {
     $level = $user['level'];
   }
}

// 3. set flag (optional) or access $level directly
if(isset($level)) {
  $isAdmin = ($level === "Admin") ? true: false;
}

// normal user: Hello (name of user), Home, Blog, Write a blog, Logout,
// admin logs : Hello (name of user), Home, Blog, Write a blog, Admin, Logout,

?>

and the markups...

<header>
    <div class="wrap-header zerogrid">
        <div id="logo"><a href="/"><img src="/assets/images/logo_blog.png"/></a></div>
        <nav>
            <div class="wrap-nav">
                <div class="menu">
                    <ul class="list-unstyled">

                       <!-- code omited -->              
                        <?php
                           if(isset($isAdmin) and $isAdmin) {
                              // display markup for Admin <li>
                           }
                         ?>    

                    </ul>               
                </div>
            </div>
        </nav>
    </div>
</header>

Hope this helps.

Answer 2

Thank you for your replies. It really was something simple solved with an if statement:

<nav>
        <div class="wrap-nav">
            <div class="menu">
                <ul class="list-unstyled">
                    <? if ($_SESSION['user']['first_name']): ?>
                        <li><a href="#"><i class="icon fa fa-user"></i> Hello <?= $_SESSION['user']['first_name'] ?></a></li>
                    <? endif ?>
                    <li><a href="/"><i class="icon fa fa-home"></i> Home</a></li>
                    <li><a href="/blog"><i class="icon fa fa-book"></i> Blog</a></li>
                    <? if ($_SESSION['user']['level'] < 2): ?>
                        <li><a href="/payment"><i class="icon fa fa-pencil"></i> Write a Blog</a></li>
                    <? else: ?>
                        <li><a href="/admin"><i class="icon fa fa-pencil"></i> Admin</a></li>
                    <? endif ?>
                    <? if ($_SESSION['user']['first_name']): ?>
                        <li><a href="?action=logout"><i class="icon fa fa-sign-in"></i> Logout</a></li>
                    <? else: ?>
                        <li><a href="/sign_in"><i class="icon fa fa-sign-in"></i> Login</a></li>
                        <li><a href="/register"><i class="icon fa fa-pencil"></i> Register</a></li>
                        <? endif ?> 
                </ul>               
            </div>
        </div>
    </nav>