Updating a mysql table with php
For updated tutorials look for a PDO or My SQLi tutorial. This tutorials also uses mysql_ functions that are no longer support.
For updated tutorials look for a PDO or My SQLi tutorial. We have had a few tutorial that show how to display and add data to a My SQL database.
We will be retreiving the data, making changes, then updating the row in the database.
This tutorial is designed for the user to update there own information so we will only be editing row for this user.
So this My SQL code above updates a table named table_name, setting a column name equal to a certain value where a certain column is equal to a value.
I'll give a practical example because this is kind of hard to understand. In the example shown above, we update a table named Users_table and set the state column equal to FL where the name column equals to John.
In simpler words, we want to update the user John's state to FL. This setup is great anytime you need to update values.
See also My SQL: choosing an API guide and related FAQ for more information. Note: Whenever you specify "localhost" or "localhost:port" as server, the My SQL client library will override this and try to connect to a local socket (named pipe on Windows).
Once we build the HTML form we will be able to populate the data into the field. The important things to note in the HTML above is the form action and method. We want to pass all the changes to and then will update the database. Pay attention to the different values if you are not familiar with them.
The method is the method that we will be using to transmit the variables. GET variables will be displayed in the url, for this example we do not want that, we can you the post method. type=”text” –just means we are using a text field value=”” –this is what the box will display by default.
It is insecure and will leave your server vulnerable to SQL Injection attacks.
This tutorials also uses mysql_ functions that are no longer support. It is insecure and will leave your server vulnerable SQL Injection attacks.