StackRating

An Elo-based rating system for Stack Overflow
Home   |   About   |   Stats and Analysis   |   Get a Badge
Answers and rating deltas for

How to check if a variable (e.g. $3) exists so that I don't get a warning about "uninitializ...

Author Votes Δ
user4035 12 +2.18
ikegami 10 -0.08
PP. 3 -1.44
Last visited: Sep 14, 2014, 5:07:29 AM