A simple email validator
1. Copy this into your PHP Script
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//-----------------------
// 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
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<?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 ?> |
