Questão 2122141

\$con=connection(“localhost”,”root”,123”); e \$banco=db("biblioteca")

\$con=bd_connection(“localhost”,”fiocruz”,xyz”); e \$banco=bd_select("biblioteca")

\$con=mysqli_connect(“localhost”,”biblioteca”,”root”,123”)

\$con=mysqli_connect(“localhost”,”root”,123”); e \$bd=mysqli_select_db("biblioteca")