php mysql update

Update Data In a MySQL Table Using MySQLi and PDO

The UPDATE statement is used to update existing records in a table:

UPDATE table_name

SET column1=value, column2=value2,...

WHERE some_column=some_value 

Notice the WHERE clause in the UPDATE syntax: The WHERE clause

specifies which record or records that should be updated. If you omit the WHERE

clause, all records will be updated!

To learn more about SQL, please visit our SQL tutorial.

Let's look at the "MyGuests" table:

The following examples update the record with id=2 in the "MyGuests" table:

Example (MySQLi Object-oriented)

Example (MySQLi Procedural)

Example (PDO)

After the record is updated, the table will look like this: