LIII. hash Functions

��

Message Digest (hash) engine. Allows direct or incremental processing of arbitrary length messages using a variety of hashing algorithms.

�ݨD

The Hash extension requires no external libraries and is enabled by default as of PHP 5.1.2. It may be explicitly disabled by using the --disable-hash switch to configure. Earlier versions of PHP may incorporate the Hash extension by installing the PECL module.

�w��w�q�`��

�H�U�`�ƥѦ��w�q�A�u�b�o�ө��Q�sĶ�PHP�ι��ɴ�Q�ʺA��J�ɦ�ġC

HASH_HMAC (integer)

Optional flag for hash_init(). Indicates that the HMAC digest-keying algorithm should be applied to the current hashing context.

內容目錄
hash_algos -- Return a list of registered hashing algorithms
hash_file -- Generate a hash value using the contents of a given file
hash_final -- Finalize an incremental hash and return resulting digest
hash_hmac_file -- Generate a keyed hash value using the HMAC method and the contents of a given file
hash_hmac -- Generate a keyed hash value using the HMAC method
hash_init -- Initialize an incremental hashing context
hash_update_file -- Pump data into an active hashing context from a file
hash_update_stream -- Pump data into an active hashing context from an open stream
hash_update -- Pump data into an active hashing context
hash -- Generate a hash value (message digest)