wp-includes/fonts/class-wp-font-face-resolver.php:194Converts all first dimension keys into kebab-case.
$dataarrayarray private static function to_kebab_case( array $data ) { foreach ( $data as $key => $value ) { $kebab_case = _wp_to_kebab_case( $key ); $data[ $kebab_case ] = $value; if ( $kebab_case !== $key ) { unset( $data[ $key ] ); } } return $data; }Introduced in 6.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/fonts/class-wp-font-face-resolver.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.