Re: real simple regex

<Original message> From: Jack Dempsey <dempsejn@georgetown.edu> Date: Mon, Sep 17, 2001 at 09:41:07PM -0400 Message-ID: <NEBBKBGAMLPMIDAJEALPIEIMCHAA.dempsejn@georgetown.edu> Subject: RE: [PHP] real simple regex > you actually don't need regex... > if you take a few minutes you can do it all with strpos and substr, adn > it'll be faster than regex..... </Original message> <Reply> Not realy the very best solution to use strpos and substr. You'll have to loop through the "From-string" and look for the next address each time. You can have more than one address in the From-field! And then again... what would you do with addresses that are not between < and >? Eg.: Renze Munnik <renze@datalink.nl>, someone@hotmail.com. Using strpos and substr won't realy make you're live any simpler. I suggest you use something like the following RE: $emlchars = "[a-z0-9.-]+"; $RE = "/($emlchars@$emlchars)/i"; I've put the allowed characters for the email-address in a separate string in order to make it read easier. You can add all characters to that string that are also allowed, because I don't believe these are the only allowed characters in an email-address. How to use? See the following example code: --- PHP Code --- <PRE> <?php $from = "* R&zE: <renze@datalink.nl>, someone@hotmail.com, Mr Nobody <nobody@some.domain.com>"; $emlchars = "[a-z0-9.-]+"; $RE = "/($emlchars@$emlchars)/i"; if (preg_match_all ($RE, $from, $matches)) { print ("<H1>Matched!</H1>\n\n"); print_r ($matches); } else { print ("<H1>Didn't match!</H1>"); } ?> </PRE> --- End of PHP Code --- </Reply> -- * R&zE: -- »»»»»»»»»»»»»»»»»»»»»»»» -- Renze Munnik -- DataLink BV -- -- E: renze@datalink.nl -- W: +31 23 5326162 -- F: +31 23 5322144 -- M: +31 6 21811143 -- -- Stationsplein 82 -- 2011 LM HAARLEM -- Netherlands -- -- http://www.datalink.nl -- ««««««««««««««««««««««««