[RESOLVED] validate multiple email addresses from 1 input box

[jeepin81]

I'm not sure what I'm missing here... I have an input box for email addresses were the user can enter multiple addresses - comma separated. However, when I try to validate multiple addresses it only throws the first address as valid the rest are invalid:

my code:

  $TO_EMAIL = "[e-mail], [e-mail], [e-mail]";

  $MULTI_EMAIL_CHECK = explode(',', $TO_EMAIL);

  $c = 1;

  foreach($MULTI_EMAIL_CHECK as $value){

  if(!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $value)){
    $error_msg = "!Invalid Email Address - Please Try Again.";
    $to_email_error = 'YES'; 
    }

    echo $c." - ".$value." - ".$error_msg."<br/>";

  $c++;
  }

I know mr. brad will argue that a "+" sign in an email address is valid ; ) and I will address that in a bit but for the time being I am little stumped by this.

any insight is appreciated.

[bradgrafelman]

jeepin81;10983273 wrote:

I know mr. brad will argue that a "+" sign in an email address is valid ; )

Oh I'll argue a lot more than that! Example - for starters, the ereg() functions are all deprecated and you shouldn't be using them for anything (let alone e-mail addresses). Second, the "correct" PCRE expression is probably something like:
code|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\[\x01-\x09\x0b\x0c\x0e-\x7f])")@(?🙁?:a-z0-9?.)+a-z0-9?|[(?🙁?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-][a-z0-9]🙁?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\[\x01-\x09\x0b\x0c\x0e-\x7f])+)])[/code](source: here). However, since that's long and nasty, it's a lot easier to just use:

filter_var($email, FILTER_VALIDATE_EMAIL)

instead.

Third, the rest of your e-mail addresses are invalid because they all contain a leading space (hint: look at what you're explode()'ing on, and look at what you're separating e-mail addresses with - they aren't the same).

[jeepin81]

Thanks Brad... Point(s) taken w/ appreciation.

I actually was using the filter_var() and getting false do to my white spaces and I couldn't figure out what was going on.

Thanks for the enlightenment.

Issues Resolved.