Using OOP With PHP

IT kaunokhmer taken how to use OOP (Object Oriented Programming) language with PHP.

First, we create a new state called clsConnection.php It contains a Class clsConnection Connect to the Database Constructor need for it to Connect to the Database immediately when we create it as Object.

<?php

    define('hostname', 'your_host_name');

    define('username', 'your_username');

    define('password', 'your_password');

    define('databaseName', 'your_database_name');

    class clsConnection{

        public function __construct(){

            $conn=mysql_connect(hostname, username, password)

            or die('Error:' . mysql_error());

            mysql_select_db(databaseName, $conn)

            or die('Error:' . mysql_error());

            return $conn;

        }

    }

?>

Then we create a new state called clsItem used for Insert and download Data from the Database.

<?php

    require_once('clsConnection.php');

    $conn=new clsConnection();

    class clsItem{

        public function __construct($value){

            $result=mysql_query("INSERT INTO tableName (item) VALUES ('$value')");

        }

        public function Show(){

            $data=mysql_query("SELECT * FROM tableName");

            while($rows=mysql_fetch_array($data)){

                echo '<p>' . $rows['item'] . '</p>';

            }

        }

    }

?>

Finally, we create a new state called Index.php for User Insert Data to the Database.

<?php

    require_once('clsItem.php');

    if(isset($_POST['submit'])){

        $value=$_POST['txtitem'];

        $item=new clsItem($value);

        $item -> Show();

    }

     

?>

<html>

    <head>

        <title>Basic OOP</title>

    </head>

    <body>

        <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">

            <label>Item : </label>

            <input type="text" name="txtitem" />

            <br />

            <input type="submit" value="Submit" name="submit" />

        </form>

    </body>

</html>