php - Sms received from iOS14 phones show "@" as "¡"

Our website has a function to receive sms from our clients. Some client send sms with their email address, the system has working find for the last 10 months. Today we found out that the email from some sms look like this:
nameВЎgmail.com
Notice the@
is encoded differently and it show asВЎ
(look like a reversed exclamation mark).
I used utf8 encoder and it shows\xc2\xa1
After some investigation, we found out that those message from iOS 14 phones (we tested using iOS 13 and Android, those are working fine).
How to convert it back to@
character? Our system use PHP.
Share solution ↓
Additional Information:
Link To Answer People are also looking for solutions of the problem: err_ossl_pem_no_start_line
Didn't find the answer?
Our community is visited by hundreds of web development professionals every day. Ask your question and get a quick answer for free.
Similar questions
Find the answer in similar questions on our website.
Write quick answer
Do you know the answer to this question? Write a quick response to it. With your help, we will make our community stronger.