gistfile1.php

<?php
define('MYACTIVERECORD_CONNECTION_STR', 'mysql://yourDatabaseUserName:yourDatabasePassword@localhost/yourDatabaseName');
class Widgets extends MyActiveRecord {
  //nothing else needed here
}
if(isset($_POST['id'])){
	header('Content-type: text/html; charset=utf-8');
	$id = str_replace('row_', '', $_POST['id']);
	if($row = MyActiveRecord::FindById('widgets',$id)){
		$row->$_POST['field'] = $_POST['value'];
		$row->save();
		print($row->h($_POST['field']));
	}else{
		print 'Error!';
	}
}
?>