Re: Regular Expressions?

I don't use ereg(i)? much myself but for a perl compat regex I would: /^(([0-9a-z](\2*))\.([0-9a-z](\2*)))/i the \# refer to parenthized matches starting at 1 and counting left parens. The match array index you will want is $myArray[1]. if you don't mind matching 1a2.1a2 you can use /^(([0-9a-z]+)\.\1+)/i or 123.456 /^([0-9a-z]+\.[0-9a-z]+)/i morgan

""Jason Caldwell"" <jason@thinkingman.org> wrote in message news:9boi65$ipb$1@toye.p.sourceforge.net... I'm looking to compare if my array values match any digits or alpha characters with a dot between them... so, if I think I understand Regular Expressions (from what I could gather from PHP.net and Core PHP Programming by Leon Atkinson.) I want to match any of the following: 1.1 or a.a

or 1111.1111 or aaaa.aaaa    <-- any number of digits (0-9) or alpha (a-z)

on either side of the dot. if(eregi("^([0-9][a-z]\.[0-9][a-z]", $myArray[x])) Is this correct? I think I'm missing something. Thanks. Jason