wp-includes/class-wp-oembed.php:658Parses a json response body.
$response_bodystringobject|false private function _parse_json( $response_body ) { $data = json_decode( trim( $response_body ) ); return ( $data && is_object( $data ) ) ? $data : false; }Introduced in 3.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-oembed.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.