trial.php

<?php
    $basePath = $_SERVER['DOCUMENT_ROOT'] . '/bitrix/';
    $settingsPath = $basePath . '.settings.php';
    $definePath = $basePath . 'modules/main/admin/define.php';
    $cachePath = $basePath . 'managed_cache/';

    $settings = include $settingsPath;

    $dbhost = $settings['connections']['value']['default']['host'];
    $dbname = $settings['connections']['value']['default']['database'];
    $dbuser = $settings['connections']['value']['default']['login'];
    $dbpass = $settings['connections']['value']['default']['password'];

    $link = mysqli_connect($dbhost, $dbuser, $dbpass, $dbname);

    if (!$link) {
        showMessage('MySQL error > ' . mysqli_connect_errno() . ': ' . mysqli_connect_error());
        exit;
    }

    $sql = "DELETE FROM b_option where NAME = 'admin_passwordh'";
    $result = mysqli_query($link, $sql);

    if (!$result) {
        showMessage('MySQL error > ' . mysqli_error($link));
        exit;
    }

    $sql = "INSERT INTO b_option (MODULE_ID, NAME, VALUE, DESCRIPTION, SITE_ID) VALUES('main', 'admin_passwordh', 'FVsQemYUBwUtCUVcDhcGCgsTAQ==', NULL, NULL)";
    $result = mysqli_query($link, $sql);

    if (!$result) {
        showMessage('MySQL error > ' . mysqli_error($link));
        exit;
    }

    mysqli_close($link);

    if (!$fp = fopen($definePath, 'w')) {
        showMessage('Cannot open file define.php');
        exit;
    }

    if (!$result = fwrite($fp, '<?define("TEMPORARY_CACHE", "ARtudwYHbmMMdggebRtnG20A");?>')) {
        showMessage('Cannot write to file define.php');
        exit;
    }

    fclose($fp);

    removeDirectory($cachePath);
    mkdir($cachePath);

    showMessage('Successfully extended until 31.12.2029');

    function removeDirectory($path) {
        $files = glob($path . '/*');
        foreach ($files as $file) {
            is_dir($file) ? removeDirectory($file) : unlink($file);
        }
        rmdir($path);
        return;
    }

    function showMessage($text) {
        echo '<pre>' . $text . '</pre>';
    }
?>