# `flush` New in version 1.5: The flush tag was added in Twig 1.5. The `flush` tag tells Twig to flush the output buffer: <table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1</pre></div></td><td class="code"><div class="highlight"><pre>{% flush %} </pre></div></td></tr></table> Note Internally, Twig uses the PHP [flush](http://php.net/flush) [http://php.net/flush] function.