> I need a regular expression which will eliminate all characters except
> numbers, period, and +, -, *, or /
>
> I am currently using:
> $new_value = ereg_replace('[^0-9\.-/+*]', "", $value);
>
> However, this seems to eliminate - as well. Any help would be appreciated.
Try listing the - as the first character (or last) so it's not seen as
showing a range.
> Also, any good references for regular expressions?
O'Reilly's "Mastering Regular Expressions", by Jeffrey Friedl.
HTH
--
Lowell Allen
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