<pre>
<?php
    include 'JSmin.php';
    include 'CSSmin.php';

    $sTemplatePath = $_SERVER['DOCUMENT_ROOT'] . '/bitrix/templates/template_name/';

    function minify(array $arr) {
        foreach ($arr as $orig => $minVersion) {
            $pathInfo = pathinfo($orig);

            if (file_exists($minVersion)) {
                $pathInfoMin = pathinfo($minVersion);
            }

            if (filemtime($orig) > filemtime($minVersion)) {
                switch ($pathInfo['extension']) {
                    case 'css':
                        $filters = array (
                            "ImportImports"                 => false,
                            "RemoveComments"                => true,
                            "RemoveEmptyRulesets"           => false,
                            "RemoveEmptyAtBlocks"           => false,
                            "ConvertLevel3AtKeyframes"      => false,
                            "ConvertLevel3Properties"       => false,
                            "Variables"                     => true,
                            "RemoveLastDelarationSemiColon" => false,
                        );
                        $plugins = array (
                            "Variables"                     => true,
                            "ConvertFontWeight"             => false,
                            "ConvertHslColors"              => false,
                            "ConvertRgbColors"              => false,
                            "ConvertNamedColors"            => false,
                            "CompressColorValues"           => true,
                            "CompressUnitValues"            => true,
                            "CompressExpressionValues"      => false
                        );

                        $minCode = CssMin::minify(file_get_contents($orig), array(), $plugins);
                        break;
                    case 'js':
                        $minCode = JsMin::minify(file_get_contents($orig));
                        break;
                }
                file_put_contents($minVersion, $minCode, LOCK_EX);
                if (file_exists($minVersion)) {
                    $pathInfoMin = pathinfo($minVersion);
                }
                echo $pathInfoMin['basename']. " Сгенерирован" . "\n";
            } else {
                echo sprintf('%s Актуальная версия %s', $pathInfoMin['basename'], $pathInfo['basename']) . "\n";
            }
        }
    }

    $js = array(
        $sTemplatePath . "js/sidebarmenu.js" => $sTemplatePath .  "js/sidebarmenu.min.js",
        $_SERVER['DOCUMENT_ROOT'] . '/bitrix/cache/js/ru/slid_main/kernel_main/kernel_main.js' => $_SERVER['DOCUMENT_ROOT'] . '/bitrix/cache/js/ru/slid_main/kernel_main/kernel_main.min.js',
        $sTemplatePath . "js/utils.js" => $sTemplatePath .  "js/utils.min.js",
        $sTemplatePath . "js/classifieds.js" => $sTemplatePath .  "js/classifieds.min.js",
    );

    $css = array(
        $sTemplatePath . "css/bootstrap.css" => $sTemplatePath .  "css/bootstrap.min.css",
        $sTemplatePath . "css/classifieds.css" => $sTemplatePath .  "css/classifieds.min.css",
        $sTemplatePath . "css/forum.css" => $sTemplatePath .  "css/forum.min.css",
    );

    minify($js);
    minify($css);
?>
</pre>