WordPress woocommerce_get_country_locale hook not working - php

Question

I am trying to use the filter woocommerce_get_country_locale to remove the "State" field for a specific country. However, it does not work.
Here is what I tried:
Attempt 1
add_filter(
'woocommerce_get_country_locale',
static function (array $locale): array {
$locale['HK']['state']['hidden'] = true;
return $locale;
}
);
Attempt2
apply_filters(
'woocommerce_get_country_locale',
[
'HK' => [
'postcode' => [
'required' => false,
],
'city' => [
'label' => __('Town / District', 'woocommerce'),
// 'placeholder' => __( 'Town / District', 'woocommerce' )
],
],
]
);
Please suggest how to achieve this. Thank you!

Answer 1

You could try adding to your array:
'state' => array(
'required' => false
)
Like France in the function, for example.
So your filter would look like
apply_filters( 'woocommerce_get_country_locale', array(
'HK' => array(
'postcode' => array(
'required' => false
),
'city' => array(
'label' => __( 'Town / District', 'woocommerce' ),
//'placeholder' => __( 'Town / District', 'woocommerce' )
)
'state' => array(
'required' => false
)
)
));
The function which controls this lives in
woocommerce/includes/class-wc-countries.php
It could be removed there but you would need to take great care to ensure that this is maintained when you update WooCommerce. I would not recommend editing core theme files in this way but it can produce the desired result.
This might help in providing good background to the get country locale function:
http://woocommerce.wp-a2z.org/oik_api/wc_countriesget_country_locale/?bwscid1=2
And this might provide another way - showing that that country is not allowed if you wanted to remove HK altogether:
http://woocommerce.wp-a2z.org/oik_api/wc_countriesget_allowed_countries/
Something in the answers here might help to point you in a more correct way to do it:
https://wordpress.stackexchange.com/questions/73062/how-to-force-wordpress-to-temporarily-switch-locale-using-qtranslate
This also might explain some of the behaviour: https://wordpress.stackexchange.com/questions/120741/cant-change-a-label-in-woocommerce-with-the-normal-filter