3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php header ( 'Content-Type: text/html; charset=utf-8' ); setlocale ( LC_ALL, 'ru_RU.utf8' ); echo '"' . preg_replace ( '/[^\p{L}\d]/iu', ' ', 'ёйцукенгшщзхъфывапролджэячсмитьбю1234567890' ) . '"';
Output for 4.4.0 - 4.4.9, 5.0.5 - 7.1.0
"ёйцукенгшщзхъфывапролджэячсмитьбю1234567890"
Output for 4.3.11, 5.0.0 - 5.0.4
Warning: preg_replace(): Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 3 in /in/k27oI on line 4 ""
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 3 in /in/k27oI on line 4 ""