PHP MySQL Update

The UPDATE statement is used to modify data in a database table.


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Update Data In a Database
The UPDATE statement is used to modify data in a database table.

Syntax
UPDATE table_name
SET column_name = new_value
WHERE column_name = some_value

Note: SQL statements are not case sensitive. UPDATE is the same as update.
To get PHP to execute the statement above we must use the mysql_query() function. This function is used to send a query or command to a MySQL connection.

Example
Earlier in the tutorial we created a table named "Person". Here is how it looks:

FirstName LastName Age
Peter Griffin 35
Glenn Quagmire 33

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

$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}mysql_select_db("my_db", $con);

mysql_query("UPDATE Person SET Age = '36'
WHERE FirstName = 'Peter' AND LastName = 'Griffin'");mysql_close($con);
?>

After the update, the "Person" table will look like this:

FirstName LastName Age
Peter Griffin 36
Glenn Quagmire 33