3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $ch = ""; $ch10 = chr(10); $ch13 = chr(13); var_dump($ch, $ch10, $ch13, 'a', $ch10 === $ch13);
based on 3YoEF
Output for 5.5.0 - 7.3.0rc4
string(0) "" string(1) " " string(1) " " string(1) "a" bool(false)