3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $whitespace = "\x0b"; $string = "hi".$whitespace."bob : letter v"; echo $string . "\n"; echo preg_replace('/\s\s+|\\f|\\n|\\r|\\t|\\v/', '', $string);
Output for 4.4.9, 5.2.4 - 7.1.0
hi bob : letter v hibob : letter v
Output for 4.3.0 - 4.4.8, 5.0.0 - 5.2.3
hi bob : letter v hi bob : letter