E-mail validation

[Midgard]

Hi there,

I'm using this code for e-mail checking:

[PHP]
if (!ereg("^[a-zA-Z0-9_]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]+$", $email)) {
echo "<span style=\"color: red; font-weight: bold; \">Registrat ion errors have occured:</span><br />You entered an invalid email address.<p>Plea se go <a href=\"javascri pt:history.go(-1)\">previous page</a> and try again.</p>";
} else {
// registration codes
}
[/PHP]

But, example, if my email address is hello.there@add ress.net registration have error. Why?

Thanks

[ronverdonk]

Your regular expression only allows alphabetic chars and numeric digits before the @.
In ordet to handle that use the pattern in the following function:

function valid_email ($str) {
 return  (ereg ('(^[0-9a-zA-Z_\.-]{1,}@([0-9a-zA-Z_\-]{1,}\.)+[0-9a-zA-Z_\-]{2,}$)', $str));
}

Ronald :cool: