3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function koapToNum($koap){ $o = array('#[^\d\.]#','\.\.'); $n = array('','.'); $digit = preg_replace($o, $n, $koap); return $digit; } echo koapToNum('12.21.1 ч.1.1');
Output for 5.3.28 - 5.3.29, 5.4.20 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_replace(): Delimiter must not be alphanumeric or backslash in /in/kchPv on line 5
Output for hhvm-3.12.0
Warning: Delimiter must not be alphanumeric or backslash in /in/kchPv on line -1
Output for hhvm-3.10.0
Warning: Delimiter must not be alphanumeric or backslash in /in/kchPv on line 5
Output for 5.2.5 - 5.3.27, 5.4.0 - 5.4.19
Warning: preg_replace(): Delimiter must not be alphanumeric or backslash in /in/9eP3I on line 5
Output for 4.3.11 - 5.2.4
Warning: preg_replace(): Delimiter must not be alphanumeric or backslash in /in/9eP3I on line 5 12.21.1.1.1
Output for 4.3.1 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/9eP3I on line 5 12.21.1.1.1
Output for 4.3.0
Warning: Delimiter must not be alphanumeric or backslash in /in/kchPv on line 5 12.21.1.1.1