Updating a row in sql using php


06-Aug-2016 14:24

close(); /** HELPER FUNCTIONS BELOW **/ /** * Connect to a my SQL Database * The values used here are specific to this sandbox environment; * Replace these values with your my SQL server values.* */ function connect_to_db() { $mysqli = new mysqli( '127.0.0.1', // hostname 'root', // username '', // password 'mydb' // database ); // If the connection attempt returned an error, print it if ($mysqli-query("DROP TABLE IF EXISTS `$table`;"); // Write query to create a table if needed $query = "CREATE TABLE `mytable` ( `id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT, `item` VARCHAR(100) NOT NULL, `completed` BOOLEAN NOT NULL DEFAULT 0, PRIMARY KEY (`id`) );"; // Execute the query $db-query($query); } function add_three_records($db, $table) { $query = "INSERT INTO `mytable` (`item`, `completed`) VALUES (' Item1', 0), (' Item2', 1), (' Item3', 1);"; // Execute the query $result = $db-fetch_row()) { printf (" id: %d \n", $row[0]); printf (" item: '%s' \n", $row[1]); printf (" completed: %s \n", ($row[2]) ?(Anyone with PHP knowledge is welcome to comment on the code.If there are issues I haven't noticed, please let me know.The UPDATE statement is used to update the records in a My SQL database table.The UPDATE statement is used to change or modify the existing records in a database table.I'm also happy to help with any questions (please post questions in a new topic.) How to create a system that allows a user to add/edit/remove data in a database seems to be a commonly asked topic, so I may adapt this into an actual tutorial at some point in the future.Do realize that it is intended for beginners, so I didn't want to do anything too advanced that might lead to confusion. It's a basic system that allows you to: -- view existing records -- edit existing records -- delete existing records -- add new records Online demo: just imagine that you are in charge of a sports team, and you want to keep a list of all your player's contact information.

has a submit button which is meant to update mysql using update_with what ever info you changed using the id field in the url using $_GET['id].

I know this script is very open to slq injections but I'm planning to only use this in a local environment, it wont be exposed to the internet and only myself and one other person will be using this page so its not really an issue.

This is just a basic starting point for projects that require view/edit/delete functionality.

I know it may seem a lot to understand at first, but read all the comments in the code -- I try to explain what I am doing step by step.

It is typically used in conjugation with the WHERE clause to apply the changes to only those records that matches specific criteria.

the table in list_records has an edit function which takes you to where it displays the data in db table.



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