3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $file = "holm_22.jpg"; preg_match_all('/([\d]+)/', $file, $match); echo implode("","", $match[0]);
based on cfqRm
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: implode() expects at most 2 parameters, 3 given in /in/3fJg3 on line 7
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for implode() in /in/3fJg3 on line 7