3v4l.org

run code in 300+ PHP versions simultaneously
<?php $content="aaa <!--[if (gt IE 9)|!(IE)]><!--> <html lang=\"en\"> <!--<![endif]--> bbb"; $tagOpen="<!--[if (gt IE 9)|!(IE)]><!-->"; $tagClose="<!--<![endif]-->"; $condition='/'.preg_quote($tagOpen).'(.*?)'.preg_quote($tagClose).'/i'; $content=preg_replace($condition, '$1', $content); echo htmlentities($content);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
aaa &lt;html lang=&quot;en&quot;&gt; bbb
preferences:
238.03 ms | 406 KiB | 357 Q