PHP5中文手册·Generate a keyed hash value using the HMAC method -- 追寻梦想＞编程乐园＞PHP 编程

说明

string hash_hmac ( string $algo , string $data , string $key [, bool $raw_output ] )

参数

algo: Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..)
data: Message to be hashed.
key: Shared secret key used for generating the HMAC variant of the message digest.
raw_output: When set to TRUE, outputs raw binary data. Default value (FALSE) outputs lowercase hexits.

返回值

Returns a string containing the calculated message digest as lowercase hexits unless raw_output is set to true in which case the raw binary representation of the message digest is returned.

范例

Example#1 hash_hmac() example


<?php
echo hash_hmac('ripemd160', 'The quick brown fox jumped over the lazy dog.', 'secret');
?>

上例将输出：

b8e7ae12510bdfb1812e463a7f086122cf37e4f7


	PHP5中文手册 hash_hmac_file hash_init hash PHP Manual hash_hmac (PHP 5 >= 5.1.2, PECL hash:1.1-1.5) hash_hmac — Generate a keyed hash value using the HMAC method 说明 string hash_hmac ( string `$algo` , string `$data` , string `$key` [, bool `$raw_output` ] ) 参数 `algo` Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..) `data` Message to be hashed. `key` Shared secret key used for generating the HMAC variant of the message digest. `raw_output` When set to `TRUE`, outputs raw binary data. Default value (`FALSE`) outputs lowercase hexits. 返回值 Returns a string containing the calculated message digest as lowercase hexits unless `raw_output` is set to true in which case the raw binary representation of the message digest is returned. 范例 Example#1 hash_hmac() example `<?php echo hash_hmac('ripemd160', 'The quick brown fox jumped over the lazy dog.', 'secret'); ?>` 上例将输出： b8e7ae12510bdfb1812e463a7f086122cf37e4f7 参见 hash() hash_init() hash_hmac_file() hash_hmac_file hash_init hash PHP Manual

hash_hmac

说明

参数

返回值

范例

参见