(PHP 5 >= 5.1.2, PECL hash >= 1.1)
hash_update_file — Pump data into an active hashing context from a file
Hashing context returned by hash_init().
URL describing location of file to be hashed; Supports fopen wrappers.
Stream context as returned by stream_context_create().
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.