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  • How to update form data in php

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    • How to Update Data in MySQL Database Table Using PHP?

    Updating data in a MySQL database table using PHP is a fundamental aspect of web development, particularly in applications where user interactions involve modifying existing records.

    This guide delves into the process of updating data in a MySQL database table using PHP, covering database connection, SQL queries, error handling, and best practices.

    Steps to Update Data in MySQL Database Table Using PHP

    Step 1: Establishing a Database Connection

    The first step in updating data is establishing a connection to the MySQL database server.

    PHP provides several extensions for this purpose, such as MySQLi and PDO. Here's how you can connect using MySQLi.

    <?php
    $servername = "localhost";
    $username = "username";
    $password = "password";
    $database = "dbname";

    // Create connection
    $conn = new mysqli($servername, $username, $password, $database);

    // Check connection
    if ($conn->connect_error) {
    die("Connection failed: " .

    $conn->connect_error);
    }
    ?>

    Replace "localhost", "username", "password", and "dbname" with you

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