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PHP MySQL Update

Posted by Jujur Sitanggang on 5:32 AM


PHP MySQL Update



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


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:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$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




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