validation of email, with last characters

Question

I am having problem in validating email address with regular expression.The code is seems to works fine until user put some long characters separated by(.dot) at end.Code is

if(preg_match('~^\b[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-z]{2,4}+\b$~',$_POST["email"]))

{
    $valid ="valid";
}
else
{
    $valid ="invalid";
}

Problem comes when user put something like ksdlk@gll.lik.ij.lio.lk.gr it returns "valid". How to deal with last characters, that would only allow 4,5 characters from @ like ".com"or ".co.uk".

Thanks in advance

You can have a look at this: http://www.regular-expressions.info/email.html — Antoine Pelisse, Jul 05 '12 at 07:56
Please don't reinvent the wheel badly and use the [Filter](http://php.net/filter) extension to validate email addresses. — deceze, Jul 05 '12 at 08:11
there is no wrong in ksdlk@gll.lik.ij.lio.lk.gr some mail id's contains subdomains also like subdomain.maindomai.in — Krishna, Jul 05 '12 at 08:38

score 1 · Answer 1 · answered Jul 05 '12 at 08:55

1

Try to use this

if(filter_var('email@example.com', FILTER_VALIDATE_EMAIL))return TRUE;
else return FALSE;

answered Jul 05 '12 at 08:55

denil

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validation of email, with last characters

1 Answers1