chamilo-lms/main/admin/sub_language_ajax.inc.php

<?php
/* For licensing terms, see /license.txt */

use \Chamilo\CoreBundle\Entity\ExtraField;

/**
 * Sub language AJAX script to update variables
 * @package chamilo.admin.sub_language
 */
$this_script = 'sub_language';
require_once __DIR__.'/../inc/global.inc.php';

api_protect_admin_script();

$new_language = Security::remove_XSS($_REQUEST['new_language']);
$language_variable = Security::remove_XSS($_REQUEST['variable_language']);
$file_id = intval($_REQUEST['file_id']);
/**
 * Code
 */
if (isset($new_language) && isset($language_variable) && isset($file_id)) {
    $file_language           = $language_files_to_load[$file_id].'.inc.php';
    $id_language             = intval($_REQUEST['id']);
    $sub_language_id         = intval($_REQUEST['sub']);
    $all_data_of_language    = SubLanguageManager::get_all_information_of_sub_language($id_language, $sub_language_id);

    $path_folder             = api_get_path(SYS_LANG_PATH).$all_data_of_language['dokeos_folder'].'/'.$file_language;
    $all_file_of_directory   = SubLanguageManager::get_all_language_variable_in_file($path_folder);
    $return_value            = SubLanguageManager::add_file_in_language_directory($path_folder);

    //update variable language
    // Replace double quotes to avoid parse errors
    $new_language = str_replace('"', '\"', $new_language);
    // Replace new line signs to avoid parse errors - see #6773
    $new_language = str_replace("\n", "\\n", $new_language);
    $all_file_of_directory[$language_variable] = "\"".$new_language."\";";
    $result_array = array();

    foreach ($all_file_of_directory as $key_value=>$value_info) {
        $result_array[$key_value] = SubLanguageManager::write_data_in_file($path_folder, $value_info, $key_value);
    }
    $variables_with_problems = '';
    if (!empty($result_array)) {
        foreach ($result_array as $key => $result) {
            if ($result == false) {
                $variables_with_problems .= $key.' <br />';
            }
        }
    }

    if (isset($_REQUEST['redirect'], $_REQUEST['extra_field_type'])) {
        Display::addFlash(
            Display::return_message(get_lang('TheNewWordHasBeenAdded'), 'success')
        );

        $redirectUrl = api_get_path(WEB_CODE_PATH).'admin/extra_fields.php?type=';

        switch ($_REQUEST['extra_field_type']) {
            case ExtraField::USER_FIELD_TYPE:
                $redirectUrl .= 'user';
                break;
            case ExtraField::COURSE_FIELD_TYPE:
                $redirectUrl .= 'course';
                break;
            case ExtraField::SESSION_FIELD_TYPE:
                $redirectUrl .= 'session';
                break;
        }

        header("Location: $redirectUrl");
        exit;
    }

    if (!empty($variables_with_problems)) {
        echo $path_folder.' '.get_lang('IsNotWritable').'<br /> '.api_ucwords(get_lang('ErrorsFound')).': <br />'.$variables_with_problems;
    } else {
        echo 1;
    }
}