3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = '0 foo 1 bar 2 baz 3 quux'; $int = preg_replace('/\D+/', '', $string); var_dump($int);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(4) "0123"