Here’s an example function:
/**
* Add a new element to a kirby structure field
* @param string $page
* @param string $field
* @param array $data
*/
function addToStructure($page, $field, $data = array()){
$fieldData = page($page)->$field()->yaml();
$fieldData[] = $data;
$fieldData = yaml::encode($fieldData);
try {
page($page)->update(array($field => $fieldData));
return true;
} catch(Exception $e) {
return $e->getMessage();
}
}