[ci skip] Apply the INTL_IDNA_VARIANT_UTS46 fix to CI_Email::_validate_email_for_shell()
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 71740ee..a53e7e7 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -1856,7 +1856,7 @@
if (function_exists('idn_to_ascii') && strpos($email, '@'))
{
list($account, $domain) = explode('@', $email, 2);
- $domain = is_php('5.4')
+ $domain = defined('INTL_IDNA_VARIANT_UTS46')
? idn_to_ascii($domain, 0, INTL_IDNA_VARIANT_UTS46)
: idn_to_ascii($domain);
$email = $account.'@'.$domain;