How to set PHP not to check undefind index for $_GET when E_NOTICE is on?

Question

When E_NOTICE is set to on, PHP will report undefined index for arrays. I want to suppress this error for $_GET only. Is there any way to do that other than prepend

Answer 1

The best method is to check for the existence of the array key before you use it each time, using isset.

So instead of

$cow=(int)$_GET['cow'];

do

if(isset($_GET['cow'])){ $cow=(int)$_GET['cow']; }

That's verbose, however. So, you can wrap this in a function such as

function get($key_name){
  return isset($_GET[$key_name])?$_GET[$key_name]:null;
  }

and then,

$cow=get('cow');