3v4l.org

run code in 300+ PHP versions simultaneously
<?php $word = "01 2 3 4 5 6 7 8 9 0"; $nums = explode(' ', $word); $nums = array_filter($nums); $word = implode(' ', $nums); echo $word;
Output for 5.6.0 - 5.6.23, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
01 2 3 4 5 6 7 8 9
preferences:
203.11 ms | 404 KiB | 212 Q