This plug-in adds some extra ACF Field Types that are not available in the base plug-in.

This field will automatically strip the web protocol entered (e.g. "http") and set it to "https" when you save the post, so it's always using a secure protocol.

It's also styled in a way that shows the "https://" prepend before the input.

This field will automatically strip the entered phone number down to only digits. It will then create formatted phone numbers for display, links (compatible with tel:), and save the country code, country prefix and originally entered value.

array(6) {
  ["country"]=>
  string(2) "nl"
  ["number"]=>
  string(9) "612345678"
  ["display"]=>
  string(15) "+31 6 1234 5678"
  ["stripped"]=>
  string(9) "612345678"
  ["prefix"]=>
  string(3) "+31"
  ["tel"]=>
  string(12) "+31612345678"
}

To add more countries, you can extend this field type in 4 steps.

1. Add the option to render_field()
2. Add the display formatting to format_phone_number_for_display()
3. Add the validation to validate_value()
4. Add the correct prefix to get_country_prefix()