We use update operation in PHP to update the MYSQL database . This operation is known as edit operation or data modification operation in PHP. For data update operation , first of all , we fetch the data from the MYSQL database in the HTML form . This is known as fetching already inserted data and display in the input box . Let's understand update operation in steps -
How to update or edit data in PHP?
1. Create a database with a table.
2. Insert the data into the database. You can use a signup form to insert data in PHP. We will update it.
3. Fetch data from the database and display the values in the form input box.
4. We update or edit data after fetching data from the MYSQL database.
5. Kindly GET id value from the URL . We use id to update or edit unique column.
6. Update button and update query.
You can check tutorial of update operation -
Update operation in PHP
If you want learn advanced CRUD app then reference for you.
CRUD Application in PHP