The connection, as well as all forthcoming queries, will live inside a class named DAL. Create connection function. We can create multiple objects from a class. You can follow this tutorial to see pdo connection class in action. In this post I will be showing you how to create a reusable, readable Object-Oriented Programming(OOP) Database connection using PHP Pdo to connect to a MySQL Database. This package implements an abstraction of the access to SQL databases. It doesn't matter which driver you want to use; you always use the PDO class name. Starting with PHP 5.4 you are unable to use persistent connections when you have your own database class derived from the native PDO class. Connections are established by creating instances of the PDO base class. Optional − The username accessing the database. Author. You can easily perform the crud function in pdo after you have established the connectivity. DBClass is a simple PHP database class using MySQL Improved Extension. Freely Distributable. This function takes five parameters and returns a MySQL link identifier on success, or FALSE on failure. You can still use _either_ a derived PDO class _or_ persistent connections. An introduction to OO functionality within PHP - Creating a Class with Properties and Methods - The 'constructor' method - Extending a Class - Creating an Object - Accessing an Object's Properties and Methods ... Next I connect to the database using my standard db_connect procedure. PHP 5, Databases. If your code uses this combination, you will encounter segmentation faults during the cleanup of the PHP process. Connections and Connection management. Explanation: The main difference for the procedural procedure is that it uses the function mysqli_ There are two popular ways to connect to a MySQL database using PHP: With PHP’s MySQLi Extension. With PHP Data Objects (PDO) The guide also includes explanations for the credentials used in the PHP scripts and potential errors you may come across using MySQLi and PDO. If your application defines multiple connections in your config/database.php configuration file, you may access each connection via the connection method provided by the DB facade. Quick Explanation. It provides an abstract interface for establishing connections, executing SQL queries, managing transactions, retrieving … By Default PHP comes with 3 MySQL API. Database connection with PDO in php is really easy. Now, inside /inc/class/DAL.php, we will make a function that we will use to connect to our database. PHP provides mysql_connect function to open a database connection. 2 Ways to Connect to MySQL database using PHP. A simple PHP Database Class using PDO as the extension. Description. The constructor accepts parameters for specifying the database source (known as the DSN) and optionally for the username and password (if any). Objects of a class is created using the new keyword. Each object has all the properties and methods defined in the class, but they will have different property values. PHP OOP Database Class Example. Classes are nothing without objects! - DBClass.php database_connection 1.0. Define Objects.