Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/storage/d/c3/4a/ppgduerj/public_html/valida/grades20222.php on line 6

Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/storage/d/c3/4a/ppgduerj/public_html/valida/grades20222.php on line 6

Fatal error: Uncaught TypeError: mysql_select_db(): Argument #2 ($link_identifier) must be of type resource, bool given in /home/storage/d/c3/4a/ppgduerj/public_html/valida/grades20222.php:7 Stack trace: #0 /home/storage/d/c3/4a/ppgduerj/public_html/valida/grades20222.php(7): mysql_select_db('professores', false) #1 {main} thrown in /home/storage/d/c3/4a/ppgduerj/public_html/valida/grades20222.php on line 7