3v4l.org

run code in 300+ PHP versions simultaneously
<?php $html = <<<HTML <p>text</p> <p>text2</p> <ul> <li>item1</li> <li>item2</li> </ul> HTML; var_export(preg_replace('/\R+/', '', $html));
Output for 5.4.0, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
'<p>text</p><p>text2</p><ul><li>item1</li><li>item2</li></ul>'
Output for 4.3.0
'<p>text</p> <p>text2</p> <ul> <li>item1</li> <li>item2</li> </ul>'
preferences:
84.53 ms | 407 KiB | 5 Q