chamilo-lms2/main/exercise/hotspot_lang_conversion.php

<?php
/* For licensing terms, see /license.txt */
/**
 * Hotspot language conversion.
 *
 * @package chamilo.exercise
 *
 * @author
 *
 * @deprecated ?
 *
 * @version $Id: admin.php 10680 2007-01-11 21:26:23Z pcool $
 */
require_once __DIR__.'/../inc/global.inc.php';

$hotspot_lang_file = api_get_path(SYS_LANG_PATH);

if (isset($_GET['lang'])) {
    //$search = array('../','\\0','\\');
    $lang = urldecode($_GET['lang']);
    if (preg_match('/^[a-zA-Z0-9\._-]+$/', $lang)) {
        //$lang = str_replace($search,$replace,urldecode($_GET['lang']));
        if (file_exists($hotspot_lang_file.$lang.'/hotspot.inc.php')) {
            $hotspot_lang_file .= $lang.'/hotspot.inc.php';
        } else {
            $hotspot_lang_file .= 'english/hotspot.inc.php';
        }
    } else {
        $hotspot_lang_file .= 'english/hotspot.inc.php';
    }
} else {
    $hotspot_lang_file .= 'english/hotspot.inc.php';
}

$file = file($hotspot_lang_file);
$temp = [];

foreach ($file as $value) {
    $explode = explode('=', $value);

    if (count($explode) > 1) {
        $explode[0] = trim($explode[0]);
        $explode[0] = '&'.substr($explode[0], 1, strlen($explode[0]));

        $explode[1] = trim($explode[1]);
        $explode[1] = substr($explode[1], 0, strlen($explode[1]) - 1);
        $explode[1] = str_replace('"', '', $explode[1]);

        $temp[] = $explode[0].'='.$explode[1];
    }
}

foreach ($temp as $value) {
    echo $value.' ';
}