Fatal error: Uncaught PDOException: PDO::__construct(): php_network_getaddresses: getaddrinfo for db failed: Temporary failure in name resolution in /var/www/html/inc/db.php:15 Stack trace: #0 /var/www/html/inc/db.php(15): PDO->__construct('mysql:host=db;d...', 'binmall', Object(SensitiveParameterValue), Array) #1 /var/www/html/index.php(3): db() #2 {main} Next PDOException: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for db failed: Temporary failure in name resolution in /var/www/html/inc/db.php:15 Stack trace: #0 /var/www/html/inc/db.php(15): PDO->__construct('mysql:host=db;d...', 'binmall', Object(SensitiveParameterValue), Array) #1 /var/www/html/index.php(3): db() #2 {main} thrown in /var/www/html/inc/db.php on line 15