Get all data sent with the form to save this page. May include data outside the page itself, for example values that are modified in Tab.

Return value

Array

Arguments

$name

Form data name

If given, return only that part.

Full documentation

Add extra value to form data:

$txt .= "<input type='hidden' name='tallenna[my_data]' />";

Handle form data:

function onSaveInit(){
    $data = $this->getFormData();
    if ( array_key_exists('my_data', $data) ){
        // Play with $data[my_data]
    }
}

Or use isFormData()

function onSaveInit(){
    if ( $this->isFormData('my_data') ){
        // Play with $this->getFormData('my_data');
    }
}