PHP CMS Example

<?php
//Console Logger
function consoleLog($entry){
    echo "<script>console.log('$entry')</script>";
}

//Is the CMS Installed?
if(file_exists("admin/config.php")){
    //Connect to database
    require('admin/config.php');
    $mysqli = new mysqli($config['db_host'], $config['db_user'], $config['db_pass'], $config['db_name']);

    //Get Theme
    $sql = "select value from settings where setting = 'theme'";
    $themePath = "themes/" . $mysqli->query($sql)->fetch_assoc()['value'] . "/";

    //Spawn Theme
    include($themePath . "index.php");

//Install CMS
} else {
    include("admin/core/install/install.php");
}