Email Validator ตรวจสอบความถูกต้องของอีเมล์

'send_welcomeEmail' => isset($_POST['send_welcomeEmail']) ? 1 : 0,

'send_welcomeEmail' => isset($_POST['send_welcomeEmail']) ? 1 : 0,
'validateEmail' => isset($_POST['validateEmail']) ? 1 : 0,

?>

function smf_domain_exists($email, $record = 'MX')
{
list($user,$domain) = split('@',$email);

$function = (function_exists('checkdnsrr') ? '' : 'smf_') . 'checkdnsrr';

return $function($domain, $record);

}

function smf_checkdnsrr($host, $type='')
{
if(!empty($host))
{
if($type == '')
$type = "MX";
exec("nslookup -type=$type $host", $result);
foreach ($result as $line)
{
if(eregi("^$host",$line))
{
return true;
}
}
return false;
}
return false;
}

if (empty($regOptions['email']) || preg_match('~^[0-9A-Za-z=_+\-/][0-9A-Za-z=_\'+\-/\.]*@[\w\-]+(\.[\w\-]+)*(\.[\w]{2,6})$~', stripslashes($regOptions['email'])) === 0 || strlen(stripslashes($regOptions['email'])) > 255)

if (empty($regOptions['email']) || preg_match('~^[0-9A-Za-z=_+\-/][0-9A-Za-z=_\'+\-/\.]*@[\w\-]+(\.[\w\-]+)*(\.[\w]{2,6})$~', stripslashes($regOptions['email'])) === 0 || strlen(stripslashes($regOptions['email'])) > 255 || (!empty($modSettings['validateEmail']) && smf_domain_exists($regOptions['email']) === false))

<input type="checkbox" name="send_welcomeEmail" id="send_welcomeEmail_check"', !empty($modSettings['send_welcomeEmail']) ? ' checked="checked"' : '', ' class="check" />
</td>

<input type="checkbox" name="send_welcomeEmail" id="send_welcomeEmail_check"', !empty($modSettings['send_welcomeEmail']) ? ' checked="checked"' : '', ' class="check" />
</td>
</tr><tr class="windowbg2">
<th width="50%" align="right">
<label for="validateEmail_check">', $txt['admin_setting_validateEmail'], '</label>:
</th>
<td width="50%" align="left">
<input type="checkbox" name="validateEmail" id="validateEmail_check"', !empty($modSettings['validateEmail']) ? ' checked="checked"' : '', ' class="check" />
</td>

$txt['admin_setting_validateEmail'] = 'ตรวจสอบความถูกต้องของอีเมล์';