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Web Programming  Home Web Programming PHP Email Validator
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Email Validator

Author: Spacetech More by this author

Added: Mar 26, 2007 Rating:  Average Rating: 2.98 Votes: 44 Position: 8738 of 13406Average Rating: 2.98 Votes: 44 Position: 8738 of 13406Average Rating: 2.98 Votes: 44 Position: 8738 of 13406Average Rating: 2.98 Votes: 44 Position: 8738 of 13406Average Rating: 2.98 Votes: 44 Position: 8738 of 13406 Level: Beginner Software:  PHP Editors

Email ValidatorA simple email validator

1. Copy this into your PHP Script

//-----------------------
// Email Checker
//-----------------------
function check_email_address($email) {

  if (!ereg("[^@]{1,64}@[^@]{1,255}", $email)) {

    return false;
  }

  $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])) { 
    $domain_array = explode(".", $email_array[1]);
    if (sizeof($domain_array) < 2) {
        return false; 
    }
    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;
}

2. This is an example of it in use

<?php
$email  = $_POST['email'];

if (check_email_address($email)) {

if (empty($email))
{
 echo "Error: Please Enter the Authors Email Address";
 exit;

} 
else 
{
 echo "Error: '$email' is Not a Valid Email Address";
 exit;
}

}
//rest of the code here
?>


Author's URL: www.dannyscripts.com

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