ClientScript::unifyScripts PHP Method

    protected function unifyScripts()
    {
        parent::unifyScripts();
        $cacheBuster = Yii::app()->cacheBuster;
        // JS
        foreach ($this->scriptFiles as $pos => $scriptFiles) {
            foreach ($scriptFiles as $key => $scriptFile) {
                unset($this->scriptFiles[$pos][$key]);
                // Add cache buster string to url.
                $scriptUrl = $cacheBuster->createUrl($scriptFile);
                $this->scriptFiles[$pos][$scriptUrl] = $scriptFile;
            }
        }
        // CSS
        foreach ($this->cssFiles as $cssFile => $media) {
            unset($this->cssFiles[$cssFile]);
            // Add cache buster string to url.
            $cssFile = $cacheBuster->createUrl($cssFile);
            $this->cssFiles[$cssFile] = $media;
        }
    }