WP_Theme_JSON::remove_keys_not_in_schema( array $tree, array $schema ): array
Given a tree, removes the keys that are not present in the schema.
Description
It is recursive and modifies the input in-place.
Parameters
-
$treearray Required -
Input to process.
-
$schemaarray Required -
Schema to adhere to.
Return
array The modified $tree.
Source
File: wp-includes/class-wp-theme-json.php.
View all references
protected static function remove_keys_not_in_schema( $tree, $schema ) {
$tree = array_intersect_key( $tree, $schema );
foreach ( $schema as $key => $data ) {
if ( ! isset( $tree[ $key ] ) ) {
continue;
}
if ( is_array( $schema[ $key ] ) && is_array( $tree[ $key ] ) ) {
$tree[ $key ] = static::remove_keys_not_in_schema( $tree[ $key ], $schema[ $key ] );
if ( empty( $tree[ $key ] ) ) {
unset( $tree[ $key ] );
}
} elseif ( is_array( $schema[ $key ] ) && ! is_array( $tree[ $key ] ) ) {
unset( $tree[ $key ] );
}
}
return $tree;
}
Changelog
| Version | Description |
|---|---|
| 5.8.0 | Introduced. |