Making global var from inside a function in PHP

Question

I am trying to define dynamically variables. I am using a function for this, but I don\'t know how to define the new var as global (because it never created before the function)

Answer 1

Try this:

function doSomething() {
  global $x;
  $x = 5;
}

If you prefer to save a couple of bytes, you can use the $_GLOBALS array for this:

$_GLOBALS['x'] = 5;