gpapf-validate-number-country.php: Created a snippet that will ensure numbers that share the same dialing code can't be submitted if their country is not allowed.

Author: spivurno

gp-advanced-phone-field/gpapf-validate-number-country.php

@@ -0,0 +1,33 @@
+<?php
+/**
+ * Gravity Perks // Advanced Phone Field // Validate Number by Country
+ * https://gravitywiz.com/documentation/gravity-forms-advanced-phone-field/
+ *
+ * If you are limiting available countries to Canada, US numbers are still accepted. This snippet will ensure that the
+ * country of the submitted number is a country that is allowed according to your "Countries" setting.
+ */
+add_action( 'gform_field_validation', function( $result, $field_value, $form, $field, $context ) {
+
+	if ( class_exists( 'GP_Advanced_Phone_Field' ) && gp_advanced_phone_field()->is_advanced_phone_field( $field ) ) {
+
+		$countries_action = gp_advanced_phone_field()->get_plugin_setting( 'countries_action' );
+		if ( $countries_action === 'all' ) {
+			return $result;
+		}
+
+		$countries = gp_advanced_phone_field()->get_plugin_setting( 'countries' );
+		$country   = gp_advanced_phone_field()->get_phone_number_proto( $field_value )->regionCode;
+		$is_found  = in_array( $country, $countries );
+
+		if ( $countries_action === 'include' && ! $is_found ) {
+			$result['is_valid'] = false;
+			$result['message'] = esc_html__( 'This phone number is not valid for the selected country.' );
+		} else if ( $countries_action === 'exclude' && $is_found ) {
+			$result['is_valid'] = false;
+			$result['message'] = esc_html__( 'This phone number is not valid for the selected country.' );
+		}
+
+	}
+
+	return $result;
+}, 10, 5 );