Related content about PHP MySQL Update statement

PHP MySQL Update statement is used to modify the data in the database table and plays an important role. This article will understand its statement.

UpdateData in the database

The UPDATE statement is used to update existing records in the database table.

Syntax

UPDATE table_name
SET column1=value, column2=value2,...WHERE some_column=some_value

Note: Please pay attention to the UPDATE syntax WHERE clause. The WHERE clause specifies which records need to be updated. If you want to leave out the WHERE clause, all records will be updated!

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

In order for PHP to execute the above statement, we must use themysqli_query() function. This function is used to sendqueriesor commands to the MySQL connection.

Example

In the previous chapters of this tutorial, we created a table named "Persons" as shown below:

FirstNameLastNameAge

##Peter

The following example updates some data in the "Persons" table:

After this update, the "Persons" table looks like this:

##FirstName

LastName

Age

##Peter 33

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