StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    Need a regex expression to validate a phone number must contain only the characters +, -, *, ? and 0
| Author | Votes | Δ | 
|---|---|---|
| Ambro-r | 1 | 0.00 | 
Last visited: May 14, 2020, 3:16:00 AM