Add support for non-ASCII domain names in FV & Email classes' valid_email()

Depends on the Intl extension

2 files changed, 10 insertions, 0 deletions

diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index c39a26a15..88398d316 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -1079,6 +1079,11 @@ class CI_Email {
 	 */
 	public function valid_email($email)
 	{
+		if (function_exists('idn_to_ascii') && $atpos = strpos($email, '@'))
+		{
+			$email = substr($email, 0, ++$atpos).idn_to_ascii(substr($email, $atpos));
+		}
+
 		return (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
 	}
 
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index dc5d17fb3..555a65959 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1225,6 +1225,11 @@ class CI_Form_validation {
 	 */
 	public function valid_email($str)
 	{
+		if (function_exists('idn_to_ascii') && $atpos = strpos($email, '@'))
+		{
+			$email = substr($email, 0, ++$atpos).idn_to_ascii(substr($email, $atpos));
+		}
+
 		return (bool) filter_var($str, FILTER_VALIDATE_EMAIL);
 	}