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Posted by Philip Hallstrom on 09/06/05 21:17
On Tue, 6 Sep 2005, babu wrote:
> Hi all,
>
>
> I want to write regular expression for checking the string format entered by user.
>
> the allowed formats are
>
> examples:
> 10
> 10,
> 10,12-10
> 12-10
>
> that is the valid strings are:
> 1. only integer
> 2. an integer, range of integers example 3
>
> and no other characters must be allowed.
ereg("^[-0-9,]+$"...
would do it, but it would also allow "10,-" as a valid expression as
well.. so if you want to check for valid ranges you'll want to beef that
up a bit...
-philip
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