An exception occurred in the driver: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for xxx.hosting-data.io failed: Unknown Host

Question

I want to connect my IONOS database to a Symfony6 project but I have this error : An exception occurred in the driver: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for xxx.hosting-data.io failed: Hôte inconnu. I tested the database in native PHP and I can connect fine.

Here is my .env file configuration:

DATABASE_URL="mysql://my-db-username:my-pwd@xxx.hosting-data.io:3306/my-db-name"

IONOS couldn't help me, can you?

I tested the database in native PHP and I can connect fine.