No, I don't think so. My examples correspond to pin out locations and are hardly ever sequential. I guess I could use an array to store them but it would be extremly sparse.
I believe merlyn's point (if I may bo so bold) is that a developer shouldn't just enumerate variables. IE ($t1, $t2, $t3, etc). Which I agree with whole heartedly.
However I disagree that digits should be disallowed from a variable name in a language to avoid the problem. There are a lot of valid uses for a digit in a variable. The only way to keep developers from doing this is to educate them on the disadvantages.
"Look, Shiny Things!" is not a better business strategy than compatibility and reuse.
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