If you realy want to match vaild E-Mailadresses (rfc822 conformal) you have to do things like this
----------- short pattern start -------------- <!--StartFragment-->(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\ ((?:[^\\\x80-\xff\n \015()]|\\[^\x80-\xff])*\))*\))*(?:(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\ xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015" ]|\\[^\x80-\xff])*")(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xf f]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[ ^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\ xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,; :".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")) *(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\ n\015()]|\\[^\x80-\xff])*\))*\))*@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\ \[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\04 0)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80- \xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((? :[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80 -\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\( (?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\] \000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\ \x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\]))*|(?:[^(\040)<>@,;:".\\\[\]\000-\0 37\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xf f\n\015"]|\\[^\x80-\xff])*")(?:[^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\03 7]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\ \[^\x80-\xff])*\))*\)|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")*<(?:[\04 0\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()] |\\[^\x80-\xff])*\))*\))*(?:@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x 80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@ ,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff] )|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^\\ \x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff ])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^ \\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000- \037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80- \xff\n\015\[\]]|\\[^\x80-\xff])*\]))*(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\01 5()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*,(? :[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\0 15()]|\\[^\x80-\xff])*\))*\))*@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^ \x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)< >@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xf f])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^ \\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\x ff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?: [^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\00 0-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x8 0-\xff\n\015\[\]]|\\[^\x80-\xff])*\]))*)*:(?:[\040\t]|\((?:[^\\\x80-\xff\n\ 015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*) ?(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000 -\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")(?:(?:[\040\t] |\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[ ^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xf f]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\ \\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?: [^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*"))*(?:[\040\t]|\((?:[^\\\x80-\xff\n\ 015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*@ (?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n \015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff ]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\ ]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\ xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((? :[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80 -\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@ ,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff ])*\]))*(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x8 0-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*>)(?:[\040\t]|\((?:[^\\\x80-\xff\n\ 015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))* ----------- short pattern end -------------- you find it on http://www.cpan.org/authors/Tom_Christiansen/scripts/ckaddr.gz this should be sufficient preg_match("/^[a-zA-Z\d_-]+(\.[a-zA-Z\d_-]+)*@([a-zA-Z\d-]+\.)+([a-zA-Z]{2,4 })$/", $useremail) Oh, what i also have to say the ereg-funktions are to old you schould use the new php4 funktions preg_match() preg_replace() preg_... greet Martin ----- Original Message ----- From: "Jason Wong" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, August 22, 2002 5:06 AM Subject: Re: [PHP-DB] form validation question - regex not working > On Thursday 22 August 2002 04:01, [EMAIL PROTECTED] wrote: > > > Got it figured out, and foreign address do work now - > > if (empty($useremail) || > > !eregi("^([A-Za-z0-9\.\_-])+@([A-Za-z0-9\_-])+\.([A-Za-z])+\.([a-z])*$", > > $useremail)) > > What do you mean by 'foreign' addresses? > > The above will still fail for: > > [EMAIL PROTECTED] > > -- > Jason Wong -> Gremlins Associates -> www.gremlins.com.hk > Open Source Software Systems Integrators > * Web Design & Hosting * Internet & Intranet Applications Development * > > > /* > Dungeons and Dragons is just a lot of Saxon Violence. > */ > > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > > -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php