How to do connection to mysql database through php

Content Details

This content was added on Promote Content at 09 Dec 2021 and got 922 visits untill now.

Other Contents

Long Description

To connect to a MySQL database from PHP, you can use the following steps: Install the PHP MySQL extension if it is not already installed. This can usually be done by installing the php-mysql package through your package manager. Create a PHP script that will handle the database connection. In this script, use the mysqli_connect function to connect to the database. This function takes four arguments: the server name, the username, the password, and the database name. $server = "localhost"; $username = "username"; $password = "password"; $database = "database_name"; $conn = mysqli_connect($server, $username, $password, $database); If the connection was successful, mysqli_connect will return a connection resource. You can then use this resource to issue queries to the database. if ($conn) { // connection was successful, issue queries here } else { // connection failed, handle the error } To issue a query, use the mysqli_query function, which takes two arguments: the connection resource and the query string. $result = mysqli_query($conn, "SELECT * FROM users"); To process the results of a SELECT query, you can use the mysqli_fetch_assoc function in a loop. This function returns an associative array representing the next row in the result set, or NULL if there are no more rows. while ($row = mysqli_fetch_assoc($result)) { // process the row } Don't forget to close the connection when you are done. You can use the mysqli_close function for this. mysqli_close($conn);