(PHP 5 >= 5.1.2, PECL hash >= 1.1)
hash_update_file — Pump data into an active hashing context from a file
$context
, string $filename
[, resource $context
= NULL
] )
context
Hashing context returned by hash_init().
filename
URL describing location of file to be hashed; Supports fopen wrappers.
context
Stream context as returned by stream_context_create().
Returns TRUE
on success or FALSE
on failure.