C:/xampp/htdocs/moodle/lib/editor/tinymce/extra/strings.php

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<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

define('NO_MOODLE_COOKIES', true);
define('NO_UPGRADE_CHECK', true);

require_once('../../../../config.php');

$lang  = optional_param('elanguage', 'en', PARAM_SAFEDIR);
$theme = optional_param('etheme', 'advanced', PARAM_SAFEDIR);

if (!get_string_manager()->translation_exists($lang, false)) {
    $lang = 'en';
}

$string = get_string_manager()->load_component_strings('editor_tinymce', $lang);

//process the $strings to match expected tinymce lang array structure
$result = array();

foreach ($string as $key=>$value) {
    $parts = explode(':', $key);
    if (count($parts) != 2) {
        // incorrect string - ignore
        continue;
    }

    $result[$parts[0]][$parts[1]] = $value;
}

$output = 'tinyMCE.addI18n({'.$lang.':'.json_encode($result).'});';

$lifetime = '10'; // TODO: increase later
@header('Content-type: text/javascript; charset=utf-8');
@header('Content-length: '.strlen($output));
@header('Last-Modified: '. gmdate('D, d M Y H:i:s', time()) .' GMT');
@header('Cache-control: max-age='.$lifetime);
@header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .'GMT');
@header('Pragma: ');

echo $output;