php mysql connection example
Example 1: php sql connection
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
$conn= mysqli_connect($servername,$username,$password,$dbname);
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
echo "Connected Successfully.";
?>
Example 2: php mysql pdo connection
<?php
$servername = "localhost";
$username = "username";
$password = "password";
try {
$conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
echo "Connected successfully";
}
catch(PDOException $e)
{
echo "Connection failed: " . $e->getMessage();
}
?>
Example 3: php connect to mysql
$servername = "localhost";
$username = "username";
$password = "password";
$conn = new mysqli($servername, $username, $password);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
Simplified
$conn = mysqli_connect('localhost', 'username', 'password');
$database = mysqli_select_db($conn, 'database');