loadNavbarHeader.php

<?php
/* THIS WILL BE ARCHIVED */

/* Imports */
require_once "config/apiReturn.php";
require_once "config/constants.php";
require_once "config/authenticate.php";
require_once "repository/database.php";


/* Set required header and session start */
requiredHeaderAndSessionStart();

/* Connect to database */
$website = "https://abdullaharif.tech/hogwartslibrary";
/* Connect to database */
$conn = getConnection();

if (checkSessionInfo() && validateUser($conn)) {
    $username = htmlentities($_SESSION["username"]);
    $screenwidth = $_REQUEST["screenwidth"] ?? 1024;

    if ($screenwidth < 1024) {
        echo "<ul> <li><a href=\"$website/docs/catalogue/search\">" .
             "<img src=\"$website/resources/images/search.png\" class=\"img-responsive\" alt=\"search\">" .
             "</a></li> <li><a href=\"$website/docs/catalogue/userDashboard\">";
    }
    if ($screenwidth < 505) { //cell phone just use initial
        $expr = "/(?<=\s|^)[a-z]/i"; //Get initials
        preg_match_all($expr, $username, $matches);
        $result = implode(".", $matches[0]);
        $result = strtoupper($result);
        echo "$result </a></li> ";
    } else {
        if ($screenwidth < 1024) { //tablet only use full name
            echo "$username </a></li> ";
        } else { //for computer display full text
            echo "<ul> <li><a href=\"$website/docs/catalogue/search\">Search catalogue </a></li>" .
                 "<li><a href=\"$website/docs/catalogue/userDashboard\">";
            echo "Welcome $username </a></li> ";
        }
    }

    echo "<div class=\"clearfix\"> </div> </ul>";
} else {
    redirectToLogin();
}