Fix PHP 8.4 deprecation: Implicitly marking parameter as nullable is deprecated, the explicit nullable type must be used instead

Author: corsacca

dt-mapping/geocode-api/location-grid-geocoder.php

@@ -642,7 +642,7 @@ public function query_level_by_lnglat( float $longitude, float $latitude, int $l
             return $query;
         }
 
-        public function query_lowest_level_by_lnglat( float $longitude, float $latitude, string $country_code = null ): array {
+        public function query_lowest_level_by_lnglat( float $longitude, float $latitude, ?string $country_code = null ): array {
             global $wpdb;
 
             if ( is_null( $country_code ) ) {

dt-mapping/location-grid-meta.php

@@ -168,7 +168,7 @@ public static function add_location_grid_meta( $post_id, array $location_grid_me
             return $wpdb->insert_id;
         }
 
-        public static function delete_location_grid_meta( int $post_id, $type, int $value, array $existing_post = null ) {
+        public static function delete_location_grid_meta( int $post_id, $type, int $value, ?array $existing_post = null ) {
             global $wpdb;
 
             $status = false;
@@ -274,7 +274,7 @@ public static function add_user_location_grid_meta( $user_id, $location_grid_met
             return $wpdb->insert_id;
         }
 
-        public static function delete_user_location_grid_meta( int $user_id, $type, $grid_meta_id, array $existing_post = null ) {
+        public static function delete_user_location_grid_meta( int $user_id, $type, $grid_meta_id, ?array $existing_post = null ) {
             global $wpdb;
 
             $status = false;

includes/utilities.php

@@ -128,7 +128,7 @@ public static function get_contact_defaults( $force = false ) {
         }
     }
 
-    public static function get_theme( string $theme = 'wide-heavy', string $token = null ) {
+    public static function get_theme( string $theme = 'wide-heavy', ?string $token = null ) {
 
         $meta = self::get_form_meta( $token );
         if ( empty( $meta ) ) {