3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = "PHP 5"; $x++; echo $x + \n; $x = "PHP 5"; echo $x + 1;
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Undefined constant 'n' in /in/qtPVk:4 Stack trace: #0 {main} thrown in /in/qtPVk on line 4
Process exited with code 255.
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Fatal error: Undefined constant 'n' in /in/qtPVk on line 4
Process exited with code 255.
Output for 4.3.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qtPVk on line 4 Notice: Use of undefined constant n - assumed 'n' in /in/qtPVk on line 4 01