ereg() to preg_match() how?

I have kind of simple regexes that i am using.

It's so simple as:

"user/"
"user/[A-z0-9_-]"

These all work fine with ereg, but not preg.

How to convert it?

Thanks

It's most probably because your're missing the delimiters. Try this:

"~user/~"
"~user/[A-z0-9_-]~"