How do I pass undefined vars to functions without E_NOTICE errors?

Question

Pretty simple question really, how do I pass undefined vars to functions without E_NOTICE errors?

When passing undefined variables to functions such as isset(), no e

Answer 1

You have three options:

• Use isset to handle the logic properly (isset($x) || isset($y) || isset($z))
• Wrap everything in isset() and then have your function check if any of the arguements are true (kind of bleh)
• Use @ to suppress errors (also bleh)

An example of @ would be:

function a($a) { } a(@$x);

You should remember though that notices exist for a reason. I avoid error suppressing. It seems hacky to me. I would just properly wrap everything in isset(). It's a lot more verbose, but also, in my opinion anyway, more correct.