3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump('ls'.shell_exec('ls'));
Output for 5.6.28, 7.0.14 - 7.1.0
string(2) "ls"
Output for 4.3.2 - 5.6.25, 7.0.0 - 7.0.10
Warning: shell_exec(): Unable to execute 'ls' in /in/3kb7C on line 2 string(2) "ls"
Output for hhvm-3.10.0 - 3.12.0
string(23) "lsFailed to exec: `ls' "
Output for 4.3.0 - 4.3.1
Warning: shell_exec() [http://www.php.net/function.shell-exec]: Unable to execute 'ls' in /in/3kb7C on line 2 string(2) "ls"