Questão 1272669

‘\$conn = mysql_connect("hostname", "username", "password", "database_name");’

‘\$conn = new PDO("mysql:host=hostname;dbname=database_name" , "username", "password")

‘\$conn = mysqli_connect("hostname", "username", "password", "database_name");’

‘\$conn = connect_to_mysql("hostname", "database_name", "username", "password");’