Php function argument error suppression, empty() isset() emulation

Question

I\'m pretty sure the answer to this question is no, but in case there\'s some PHP guru

is it possible to write a function in a way where invalid arguments or non exi

Answer 1

is it possible to write a function in a way where invalid arguments or non existent variables can be passed in and php will not error without the use of '@'

Yes you can!

porneL is correct [edit:I don't have enough points to link to his answer or vote it up, but it's on this page]

He is also correct when he cautions "But I recommend against abusing this for hiding programming errors." however error suppression via the Error Control Operator (@) should also be avoided for this same reason.

I'm new to Stack Overflow, but I hope it's not common for an incorrect answer to be ranked the highest on a page while the correct answer receives no votes. :(