3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'DES ANALYSES BIOLOGIQUES 3465201750733 130906 / 3842'; preg_match( '/BIOLOGIQUES\s+(\d+)/', $str, $matches); echo $matches[2];
Output for 5.5.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 2 in /in/ZinDX on line 5
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 2 in /in/ZinDX on line 5
Output for 4.3.0 - 5.4.45