functions.php

<?php
    // ============================================================================================= //
    //                                        CONFIGURATIONS                                         //
    // ============================================================================================= //

    // ------------------------------------------------------------------------- //
    // Choose your working environment for loading CSS and JS files.
    //  - local => Files not compressed
    //  - prod  => Compressed files
    // ------------------------------------------------------------------------- //

    define('ENVIRONMENT', 'local');

    // ------------------------------------------------------------------------- //
    // Define CSS assets
    // ------------------------------------------------------------------------- //

    define('ASSETS_CSS', 'assets/css');

    // ------------------------------------------------------------------------- //
    // Define JavaScript assets
    // ------------------------------------------------------------------------- //

    define('ASSETS_JAVASCRIPT', 'assets/js');

    // ------------------------------------------------------------------------- //
    // Define npm vendor
    // ------------------------------------------------------------------------- //

    define('NPM_VENDOR', 'node_modules');

    // ------------------------------------------------------------------------- //
    // Define error class
    // ------------------------------------------------------------------------- //

    define('ERROR_CLASS', 'has-error');

    // ------------------------------------------------------------------------- //
    // URL variables parameters
    //  - $layout => Get layout name
    //  - $page   => Get page name
    //  - $error  => Get error parameter
    // ------------------------------------------------------------------------- //

    $layout = filter_input(INPUT_GET, 'layout');
    $page   = filter_input(INPUT_GET, 'page');
    $error  = filter_input(INPUT_GET, 'error');

    // ------------------------------------------------------------------------- //
    // Load page modules
    // ------------------------------------------------------------------------- //

    if (isset($page)) {
        include 'pages/' . $page . '.php';
    }

    // ============================================================================================= //
    //                                           FUNCTIONS                                           //
    // ============================================================================================= //

    /**
     * Generate Lorem Ipsum text.
     *
     * @param int    $minLength (5 words minimum)
     * @param int    $maxLength
     * @param string $type (para, words, bytes & lists)
     * @param bool   $lorem (Choose to start with the text "Lorem ipsum...")
     *
     * @return SimpleXMLElement[]
     */
    function lipsum($minLength = 5, $maxLength = 50, $type = 'words', $lorem = true)
    {
        $length = mt_rand($minLength, $maxLength);
        $url    = "http://www.lipsum.com/feed/xml?amount=$length&what=$type&start=".($lorem ? '0' : '1');

        return simplexml_load_file($url)->lipsum;
    }