xPDOObject::set()
Set a field value by the field key or name.
Syntax
API Docs: http://api.modxcms.com/xpdo/om/xPDOObject.html#set
boolean set( string $k, [mixed $v = null], [string|callable $vType = ''] )
Examples
Set the object's name:
$object->set('name','Billy');