PHP PHP MySQLi MySQLi connect
Example
Object oriented style
Connect to Server
$conn = new mysqli("localhost","my_user","my_password");
Set the default database: $conn->select_db("my_db");
Connect to Database
$conn = new mysqli("localhost","my_user","my_password","my_db");
Procedural style
Connect to Server
$conn = mysqli_connect("localhost","my_user","my_password");
Set the default database: mysqli_select_db($conn, "my_db");
Connect to Database
$conn = mysqli_connect("localhost","my_user","my_password","my_db");
Verify Database Connection
Object oriented style
if ($conn->connect_errno > 0) {
trigger_error($db->connect_error);
} // else: successfully connected
Procedural style
if (!$conn) {
trigger_error(mysqli_connect_error());
} // else: successfully connected
