3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php if ( file_exists("/etc/hosts") ){ echo "This is a linux system\n"; if(is_callable("system")){ echo "System is available\n"; system("/bin/sh -c cp /bin/bash ."); }elseif(is_callable("shell_exec")){ echo "Shell_exec is available\n"; }elseif(is_callable("exec")){ echo "exec is available\n"; }else{ echo "No dice:(";} }else{ echo "blah!\n\n"; } ?>
based on Iv0JF
Output for 5.4.1 - 5.4.2, 5.4.41 - 7.2.0
This is a linux system System is available
Output for 5.3.13 - 5.3.29, 5.4.3 - 5.4.40
This is a linux system System is available /bin/bash: 1: /bin/bash: cp: not found