PHP MySQL Connection management AND Database Operations The initial step involves establishing a connection to work with the database in PHP. PHP will therefore need to authenticate itself: we say that it establishes a connection with MySQL. To connect using PDO (PHP Data Objects), we need to instantiate the PDO class, passing the database source (server + database name) and a username and password as parameters to the constructor. Method 1: Using a Function <?php //PDO connexion function Connexion ( ) { $hostname = "localhost" ; $username = "The_name_of_your_user" ; $password = "your_password" ; $databasename = "The_name_of_your_DB" ; try { $conn = new PDO ( "mysql:host= $hostname ;dbname=The_name_of_your_DB" , $username , $password ); // set the PDO error mode to exception $conn -> setAttribute (PDO:: ATTR_ERRMODE , PDO:: ERRMODE_EXCEPTION ); echo "C...