3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo preg_replace('/(*UTF16)\b/', '<$0>', 'and рублей');
Output for 5.4.41 - 5.4.45, 5.5.10 - 7.1.0
Warning: preg_replace(): Compilation failed: (*VERB) not recognized or malformed at offset 5 in /in/nH6et on line 2
Output for 4.4.9, 5.2.5 - 5.4.40, 5.5.0 - 5.5.9
Warning: preg_replace(): Compilation failed: (*VERB) not recognized at offset 5 in /in/nH6et on line 2
Output for 4.3.11 - 4.4.8, 5.0.0 - 5.2.4
Warning: preg_replace(): Compilation failed: nothing to repeat at offset 1 in /in/nH6et on line 2
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: nothing to repeat at offset 1 in /in/nH6et on line 2