Not a valid email

[Anon]

Hi
I have wrote a script where users can type in their email, and then it emails to the adress he wroted.
My wuestion is:
When a use type in a not valid email php ofcourse come up with an error.
How can I check if it's not a valid email then..
Hope you can understand what I mean. (i'm a BIG newbie 😉
Best regards
Michael

[Anon]

try this (not my code :⁾

function valid_email($email) {
if (ereg("^{[a-z0-9-]+(.[a-z0-9-]+)@[a-z0-9-]+(.[a-z0-9-]+)$",$email))}
{
return true;
} else {
return false;
}
}

eg
<? if (valid_email($someAddress)){
// do whatever
} else {
// display error message
?>

[Anon]

Here's two improvements to your regex:

1. You should use eregi() instead of ereg(), or else add 'A-Z' to the patter
   itself. The domain name system is not case sensitive.

2. The regex as written does not require any dots in the host name. It curently says (following the at-sign):

&nbsp;&nbsp;one or more letters, numbers, or dashes

followed by

&nbsp;&nbsp;zero or more letters, numbers, or dashes

This correctly passes any valid host name, but it doesn't reject
addresses of the form

&nbsp;&nbsp;godot@nowhere

Just change that trailing start to a plus and you're fine.

[Anon]

thanks :⁾