Fatal error: Uncaught Error: Undefined constant "action" in /in/IvR4W:3
Stack trace:
#0 {main}
thrown in /in/IvR4W on line 3
Process exited with code 255.
Warning: Use of undefined constant action - assumed 'action' (this will throw an Error in a future version of PHP) in /in/IvR4W on line 3
a:1:{s:6:"action";s:5:"Hello";}