private function tagChange($tag, $tagLen, $text, $index)
    {
        return substr($text, $index, $tagLen) === $tag;
    }
private function tagChange($tag, $tagLen, $text, $index)
    {
        return substr($text, $index, $tagLen) === $tag;
    }
private function tagChange ( $ tag , $ tagLen , $ text , $ index ) { return substr ( $ text , $ index , $ tagLen ) === $ tag ; }
Test whether it's time to change tags.

@param string $tag    Current tag name
@param int    $tagLen Current tag name length
@param string $text   Mustache template source
@param int    $index  Current tokenizer index

@return bool True if this is a closing section tag
Test whether it s time to change tags .