Not connecting with database , what is the universal code

[taj50699]

hello am mr. md.tajuddin. i am using XAMPP i prepared students database in phpmyadmin and user_regist table but i am unable to connect my programme with student database.. i used maximum connecting php codes how ever its not connected.. pls give solution to overcome this problem

[weboutgateway]

In connecting your database you have to set it properly with your localhost,usern ame,and the password
I just make an example for you to easily understand ion how to connect your database from your program.

in a new file create a connection.php
then after you create copy the code below and change the servername, username and the password and try link this to your files.

<?php
$servername = "localhost"; // this is the default
$username = "username"; // the default is root and use your username if you change it.
$password = "password"; // if your database has no password just leave it blank "";
 
try {
    $conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully"; 
    }
catch(PDOException $e)
    {
    echo "Connection failed: " . $e->getMessage();
    }
?>
 

this sample code is PDO, but you can also use the Object-Oriented , Procedural if want.

I hope it helps. :)

[Exequiel]

THis is the best and easiest way on how to connect to your database.

This must be your code on how to connect to database.
I call it connect_to_db.p hp

<?php
//how to connect to database. . .
$connect=mysql_connect("localhost","root","");
mysql_select_db("my_database",$connect) or die("Unable to connect to Database");
?>
 

This must be your main page or home page that needs to access the database.
I called this homepage.php

<?php 
include 'connect_to_db.php';
 
echo "this is my home page.";
?>

Here in our homepage.php we used include to access or to include directly the connect_to_db.p hp so that in every page we do not need to create a code for connection to database, using include we can display a page to another page and accessed on whats that page have.

Not: be careful to your page path.
Try this.