Php Code to Connect to Mysql Database

Phone code to connect to the Mysql database

Shall I use MySQLi or PDO? Examples of MySQL in MySQLi and PDO syntax. This and the following chapters show three ways of working with PHP and MySQL: Connect to MySQL. To connect to MySQL and select a database, use the following PHP code.

MySQL PHP Connection

The PHP 5 and higher can work with a MySQL database: The PDO will work on 12 different database platforms, while MySQLi will only work with MySQLs.

So if you need to migrate your projects to another database, PDO makes the job simple. All you have to do is modify the link sequence and a few query strings. MySQLi requires you to write all the code again - including query. They are both object-oriented, but MySQLi also provides a procedural interface.

This and the following sections show three ways to work with PHP and MySQL: In most cases, the MySQLi expansion is usually done auto-installing when the mysql phone 5 php packet is up. We need to connect to the MySQL database before we can get it: we need to connect to the server:

server name = "localhost"; $username = "username"; $password = "password"; // connect$conn = new mysqli ($servername, $username, $password); the("connection failed: " . $conn->connect_error); the( "echo "Connected successfully"; PHP is an awesome and beloved name! When you need to make sure you are compatible with PHP releases before 5.2.9 and 5.3.0, use the following code instead: the("database connectivity failed:

" . Host=$server name;dbname=myDB", $username, $password) ; // Setzen Sie den PDO-Fehlermodus auf Ausnahme $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION) ; echo and " Conected successful" while echoing auption :

" . |getMessage(); Note that we also specified a database (myDB) in the above PDO example. The PDO requires a database to establish a connection. When no database is specified, an exception is raised. One big advantage of PDO is that it has an exceptions category to deal with any issues that may arise with our database query.

Triggering an exception within the try{ } blocks causes the execution of the command to stop and flow directly to the first catch(){ } blocks. Closes the link automaticly when the scripts ends. Proceed as follows to disconnect the device beforehand: b) $conn->close(); mysqli_close($conn); $conn = null;

Auch interessant

Mehr zum Thema