3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $replace="Yuqi Building Contractor & Trading Pte Ltd"; echo preg_replace("(?<!\s)&|&(?!\s)", '', $replace); ?>
Output for 4.3.11 - 7.1.0
Warning: preg_replace(): Unknown modifier '&' in /in/4IVDW on line 3
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '&' in /in/4IVDW on line 3