3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo preg_replace('/\n/', 'abra\nkadabra');
based on l0EsR
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: preg_replace() expects at least 3 parameters, 2 given in /in/uVbtW on line 2
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for preg_replace() in /in/uVbtW on line 2