$form = JForm::getInstance('myform', '/path/to/forms');
JForm::addFormPath('/path/to/custom/forms'); $form = JForm::getInstance('myform', 'mycustomform');
$data = array('fieldname' => 'fieldvalue'); $form = JForm::getInstance('myform', '/path/to/forms', $data);This code retrieves a single instance of a form object called 'myform' located in the '/path/to/forms' directory and populates the form fields with data from an array. The JForm getInstance method is part of the Joomla platform library and is located in the 'joomla/form/helper' package.