3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $whitespace = "\x20\x09\x0a\x0b\x0C\x0d"; $string = "hi".$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 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
hi bob : letter v hibob : letter v
Output for 4.3.3 - 4.4.8, 5.0.0 - 5.2.3
hi bob : letter v hi bob : letter
Output for 4.3.0 - 4.3.2
hi bob : letter v hibob : letter