Re: Warning: eregi() [function.eregi]: REG_ERANGE in ...

> I think single quotes is right because you don't want PHP to escape > the characters...the escape is for regex, not PHP In fact, we're neither correct, I was thinking of PCRE, but this is POSIX regexes which I'm not familiar with. From the POSIX man pages: "To include a literal `]' in the list, make it the first character (following a possible ^'). To include a literal -', make it the first or last character, or the second endpoint of a range. To use a literal -' as the first endpoint of a range, enclose it in [.' and `.]' to make it a collating element (see below). With the exception of these and some combinations using `[' (see next paragraphs), all other special characters, including `\', lose their special significance within a bracket expression" Which seems to tell us it can't be (and doesn't need to be) escaped at all. I'll stick with PCRE, they're binary safe. I would try removing the backslash and moving the hyphen to be the last character in the range (after the full stop). > On Jan 19, 2008 9:44 AM, Niel Archer <not@chance.now> wrote: > > Hi > > > > > OK, I don't think I searched the web hard enough. I've not found a > > > definitive explanation, but I think the warning has something to do > > > with the dash symbols (\-) within the square brackets. Removing them - > > > changing them to the regular expression below - removes the warning > > > > > > '^[a-zA-Z0-9_.]+@[a-zA-Z0-9]+\.[a-zA-Z0-9.]+$' > > > > > Question is now, how am I supposed to match dash symbols? > > > > The problem is that you included the "\-" within SINGLE quotes. Escaping > > a character only works within double quotes. Go back to your original > > but substitute the ' for " around the expression. Like this: > > > > define("EMAIL_RE", > > "^[a-zA-Z0-9_\-.]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-.]+$"); > > > > > > > > In one thread I read advised preg functions using the ereg functions. > > > I had ago with this, putting back in the dashes and changing the > > > regular expression to a perl RE: > > > > > > '/^[a-zA-Z0-9_\-.]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-.]+$/' > > > > > > No warnings this time and it appears to work. I still welcome any > > > feedback on ereg if anyone wants to give any. > > > > -- > > Niel Archer > > > > > > -- > > PHP Windows Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > > -- > ts2do > > -- > PHP Windows Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > -- Niel Archer