Codeigniter Email Attachment name not support Unicode?

I think they said that the new international php 7+ should work now,
not sure so you would need to check php.net

Thank you. I believe there should be other solutions instead of upgrading PHP version. After all, having Unicode file name is very common and is very necessary in many cases.

Actually, if that was the problem, you wouldn't just have stripped unicode characters from the filename; you'd have no attachment at all. Please test and tell me if this works (so I can merge it into the main code tree): https://github.com/bcit-ci/CodeIgniter/c...1738c5b569

BUT! Do your PHP upgrade, ASAP. Don't look for excuses to avoid it.
PHP 5 is no longer supported and only 5.6 is receiving security patches until the end of this year, and that's on par with 7.0!

https://secure.php.net/supported-versions.php

Yes, even PHP 7.0 is old news now. Don't delay those upgrades, it doesn't do you any favors.