WPMU DEV Forminator phone number validation

code.php

<?php

// Assuming one phone field in a form

add_filter( 'forminator_custom_form_submit_errors', 'check_form_data', 99, 3 );
function check_form_data( $submit_errors, $form_id, $field_data_array ) {
	$valid = false;
	foreach( $field_data_array as $val ) {
		if( $val['name'] == 'phone-1' ) {
			$phone = $val['value'];
			$pattern = '/^(([+][6][5])\s(\d{8}))?$/';
			if( preg_match( $pattern, $phone ) ){
				$valid = true;
			}
			break;
		}
	}
	
	if( ! $valid ) {
		$submit_errors[]['phone-1'] = 'Please use the correct format!';
	}
	
	return $submit_errors;
}

"phone-1" its always the name of the phone fields?