PHP WordPress Script include

<?php
/**
 * WordPress scripts and styles default loader.
 *
 * Several constants are used to manage the loading, concatenating and compression of scripts and CSS:
 * define('SCRIPT_DEBUG', true); loads the development (non-minified) versions of all scripts and CSS, and disables compression and concatenation,
 * define('CONCATENATE_SCRIPTS', false); disables compression and concatenation of scripts and CSS,
 * define('COMPRESS_SCRIPTS', false); disables compression of scripts,
 * define('COMPRESS_CSS', false); disables compression of CSS,
 * define('ENFORCE_GZIP', true); forces gzip for compression (default is deflate).
 *
 * The globals $concatenate_scripts, $compress_scripts and $compress_css can be set by plugins
 * to temporarily override the above settings. Also a compression test is run once and the result is saved
 * as option 'can_compress_scripts' (0/1). The test will run again if that option is deleted.
 *
 * @package WordPress
 */

/** WordPress Dependency Class */
require ABSPATH . WPINC . '/class-wp-dependency.php';

/** WordPress Dependencies Class */
require ABSPATH . WPINC . '/class.wp-dependencies.php';

/** WordPress Scripts Class */
require ABSPATH . WPINC . '/class.wp-scripts.php';

/** WordPress Scripts Functions */
require ABSPATH . WPINC . '/functions.wp-scripts.php';

/** WordPress Styles Class */
require ABSPATH . WPINC . '/class.wp-styles.php';

/** WordPress Styles Functions */
require ABSPATH . WPINC . '/functions.wp-styles.php';

/**
 * Registers TinyMCE scripts.
 *
 * @since 5.0.0
 *
 * @param WP_Scripts $scripts            WP_Scripts object.
 * @param bool       $force_uncompressed Whether to forcibly prevent gzip compression. Default false.
 */
function wp_register_tinymce_scripts( $scripts, $force_uncompressed = false ) {
    global $tinymce_version, $concatenate_scripts, $compress_scripts;
    $suffix     = wp_scripts_get_suffix();
    $dev_suffix = wp_scripts_get_suffix( 'dev' );

    script_concat_settings();

    $compressed = $compress_scripts && $concatenate_scripts && isset( $_SERVER['HTTP_ACCEPT_ENCODING'] )
        && false !== stripos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip' ) && ! $force_uncompressed;

    // Load tinymce.js when running from /src, otherwise load wp-tinymce.js.gz (in production)
    // or tinymce.min.js (when SCRIPT_DEBUG is true).
    if ( $compressed ) {
        $scripts->add( 'wp-tinymce', includes_url( 'js/tinymce/' ) . 'wp-tinymce.js', array(), $tinymce_version );
    } else {
        $scripts->add( 'wp-tinymce-root', includes_url( 'js/tinymce/' ) . "tinymce$dev_suffix.js", array(), $tinymce_version );
        $scripts->add( 'wp-tinymce', includes_url( 'js/tinymce/' ) . "plugins/compat3x/plugin$dev_suffix.js", array( 'wp-tinymce-root' ), $tinymce_version );
    }

    $scripts->add( 'wp-tinymce-lists', includes_url( "js/tinymce/plugins/lists/plugin$suffix.js" ), array( 'wp-tinymce' ), $tinymce_version );
}