Updating but not inserting on the database php
As you can see below, data is displayed in an HTML table.
: Function returns an array of both mysqli_fetch_row and mysqli_fetch assoc merged together, it is an extended version of the mysqli_fetch_row() function and both numeric and string can be used as keys to access the data.
Today I’d like to show you the basic usage of My Sqli, such as connect, select, insert, update and delete records. and remove comment (semi-colon) from the start of the line extension=php_
In linux too when you install php5 mysql package, My SQLi automatically gets installed, more details about installation in Linux and Windows can be found here.
To insert multiple rows at once, include multiple lists of column values, each enclosed within parentheses and separated by commas.
Sometimes you want to know how many records have been inserted, updated or deleted, you can use Syntax in My Sql query.
It works fine both for errors and false value of WHERE condition (that might be generated according to specific application user acces privileges).affected_rows will equal -1 or not is not a good method of determining success of "INSERT IGNORE" statements.
If we perform an INSERT or UPDATE on a table with an AUTO_INCREMENT field, we can get the ID of the last inserted/updated record immediately.
Object oriented style: This approach can be used with any query that mysqli::$info supports (INSERT INTO, LOAD DATA, ALTER TABLE, and UPDATE), for other any queries it returns an empty array.Snippet below inserts same values using Prepared Statement.As discussed earlier the Prepared statements are very effective against SQL injection, you should always use prepared statement in any given situations.The queries are parsed separately by the server, making it resilient to malicious code injection.The code below uses Prepared statement to fetch records from the database.