hash_update_stream

hash_update_file

(PHP 5 >= 5.1.2, PECL hash >= 1.1)

hash_update_file — Pump data into an active hashing context from a file

说明

bool hash_update_file ( resource $hcontext , string $filename [, resource $scontext = NULL ] )

参数

hcontext: Hashing context returned by hash_init().
filename: URL describing location of file to be hashed; Supports fopen wrappers.
scontext: Stream context as returned by stream_context_create().

返回值

成功时返回 TRUE，或者在失败时返回 FALSE。

参见

hash_init() - Initialize an incremental hashing context
hash_update() - Pump data into an active hashing context
hash_update_stream() - Pump data into an active hashing context from an open stream
hash_final() - Finalize an incremental hash and return resulting digest
hash() - Generate a hash value (message digest)
hash_file() - Generate a hash value using the contents of a given file

hash_update_stream