php mysql pdo connection code 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 pdo connection
$host = "localhost";
$user = "root";
$pass = "qwerty";
$dbname = "DB";
try {
$connection = new PDO("mysql:host=$host;dbname=$dbname", $user, $pass);
$connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}catch(PDOException $e)
{
echo $e->getMessage();
}
Example 4: pdo db connection
<?php
$pdo = new PDO('mysql:host=localhost;dbname=databasename', 'username', 'password');
?>
Example 5: pdo connexion
public static function connexionBDD()
{
$base = null;
try {
$base = new PDO('mysql:host=' . MYSQL_HOSTNAME . '; dbname=' . MYSQL_DATABASE . '', MYSQL_USERNAME, MYSQL_PASSWORD);
} catch (exception $e) {
die('Erreur ' . $e->getMessage());
}
return $base;
}
Example 6: connect php to mysql pdo
<?php
$pdo = new PDO('mysql:host=localhost;
dbname=the_name_of_your_databe,
'username',
'password'');
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);
?>