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/home/yknvptog/president-studio.com/libraries/src/Help/Help.php

<?php

/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2005 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Help;

use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Version;

// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * Help system class
 *
 * @since  1.5
 */
class Help
{
    /**
     * Create a URL for a given help key reference
     *
     * @param   string   $ref           The name of the help screen (its key reference)
     * @param   boolean  $useComponent  Use the help file in the component directory
     * @param   string   $override      Use this URL instead of any other
     * @param   string   $component     Name of component (or null for current component)
     *
     * @return  string
     *
     * @since   1.5
     */
    public static function createUrl($ref, $useComponent = false, $override = null, $component = null)
    {
        $local = false;
        $app   = Factory::getApplication();

if ($component === null) {
            $component = ApplicationHelper::getComponentName();
        }

//  Determine the location of the help file.  At this stage the URL
        //  can contain substitution codes that will be replaced later.

if ($override) {
            $url = $override;
        } else {
            // Get the global help URL.
            $url = $app->get('helpurl');

// Component help URL overrides user and global.
            if ($useComponent) {
                // Look for help URL in component parameters.
                $params = ComponentHelper::getParams($component);
                $url    = $params->get('helpURL');

if ($url == '') {
                    $local = true;
                    $url   = 'components/{component}/help/{language}/{keyref}';
                }
            }

// Set up a local help URL.
            if (!$url) {
                $local = true;
                $url   = 'help/{language}/{keyref}';
            }
        }

// If the URL is local then make sure we have a valid file extension on the URL.
        if ($local) {
            if (!preg_match('#\.html$|\.xml$#i', $ref)) {
                $url .= '.html';
            }
        }

/*
         *  Replace substitution codes in the URL.
         */
        $lang    = Factory::getLanguage();
        $version = new Version();
        $jver    = explode('.', $version->getShortVersion());
        $jlang   = explode('-', $lang->getTag());

$debug  = $lang->setDebug(false);
        $keyref = Text::_($ref);
        $lang->setDebug($debug);

// Replace substitution codes in help URL.
        $search = [
            // Application name (eg. 'Administrator')
            '{app}',
            // Component name (eg. 'com_content')
            '{component}',
            // Help screen key reference
            '{keyref}',
            // Full language code (eg. 'en-GB')
            '{language}',
            // Short language code (eg. 'en')
            '{langcode}',
            // Region code (eg. 'GB')
            '{langregion}',
            // Joomla major version number
            '{major}',
            // Joomla minor version number
            '{minor}',
            // Joomla maintenance version number
            '{maintenance}',
        ];

$replace = [
            // {app}
            $app->getName(),
            // {component}
            $component,
            // {keyref}
            $keyref,
            // {language}
            $lang->getTag(),
            // {langcode}
            $jlang[0],
            // {langregion}
            $jlang[1],
            // {major}
            $jver[0],
            // {minor}
            $jver[1],
            // {maintenance}
            $jver[2],
        ];

// If the help file is local then check it exists.
        // If it doesn't then fallback to English.
        if ($local) {
            $try = str_replace($search, $replace, $url);

if (!is_file(JPATH_BASE . '/' . $try)) {
                $replace[3] = 'en-GB';
                $replace[4] = 'en';
                $replace[5] = 'GB';
            }
        }

$url = str_replace($search, $replace, $url);

return $url;
    }

/**
     * Builds a list of the help sites which can be used in a select option.
     *
     * @param   string  $pathToXml  Path to an XML file.
     *
     * @return  array  An array of arrays (text, value, selected).
     *
     * @since   1.5
     */
    public static function createSiteList($pathToXml)
    {
        $list = [];
        $xml  = false;

if (!empty($pathToXml)) {
            $xml = simplexml_load_file($pathToXml);
        }

if (!$xml) {
            $option['text']  = 'English (GB) help.joomla.org';
            $option['value'] = 'https://help.joomla.org';

$list[] = (object) $option;
        } else {
            $option = [];

foreach ($xml->sites->site as $site) {
                $option['text']  = (string) $site;
                $option['value'] = (string) $site->attributes()->url;

$list[] = (object) $option;
            }
        }

return $list;
    }
}