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!(ereg("^[a-zA-Z]{1,}$", $opmail, $arr))

I dont know how to use that to check the $opmail variable to see if its in the format of an email address...

although I know how to add numers...

!(ereg("^[a-zA-Z0-9]{1,}$", $username, $arr))

my friend just never decided to show me the email thing when he showed me this.

Quote from: ghost on December 03, 2005, 06:27:31 AM

Code Select Expand

!(ereg("^[a-zA-Z]{1,}$", $opmail, $arr))

I dont know how to use that to check the $opmail variable to see if its in the format of an email address...

although I know how to add numers...

Code Select Expand

!(ereg("^[a-zA-Z0-9]{1,}$", $username, $arr))

my friend just never decided to show me the email thing when he showed me this.

I don't have the link jusy yet but I know there's a whoel topic on this at http://ssdesigns.proboards17.com

Here's a function I had laying around that checks for a valid email address, not entirely sure where I got it


function check_email_address($email) {
  // First, we check that there's one @ symbol, and that the lengths are right
  if (!ereg("[^@]{1,64}@[^@]{1,255}", $email)) {
    // Email invalid because wrong number of characters in one section, or wrong number of @ symbols.
    return false;
  }
  // Split it into sections to make life easier
  $email_array = explode("@", $email);
  $local_array = explode(".", $email_array[0]);
  for ($i = 0; $i < sizeof($local_array); $i++) {
     if (!ereg("^(([A-Za-z0-9!#$%&'*+/=?^_`{|}~-][A-Za-z0-9!#$%&'*+/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$", $local_array[$i])) {
      return false;
    }
  } 
  if (!ereg("^\[?[0-9\.]+\]?$", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name
    $domain_array = explode(".", $email_array[1]);
    if (sizeof($domain_array) < 2) {
        return false; // Not enough parts to domain
    }
    for ($i = 0; $i < sizeof($domain_array); $i++) {
      if (!ereg("^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$", $domain_array[$i])) {
        return false;
      }
    }
  }
  return true;
}//end check_email_address()


You could call it like this:
if (check_email_address($opmail)) {
    echo "The address is valid.";
}
else {
    echo "The address is invalid.";
}



Hope that helps