(PHP 5 >= 5.3.0, PHP 7)
openssl_digest — Computes a digest
$data
, string $method
[, bool $raw_output
= false
] )Computes a digest hash value for the given data using a given method, and returns a raw or binhex encoded string.
本函数还未编写文档,仅有参数列表。
data
The data.
method
The digest method.
raw_output
Setting to TRUE
will return as raw output data, otherwise the return
value is binhex encoded.
Returns the digested hash value on success 或者在失败时返回 FALSE
.
Emits an E_WARNING
level error if an unknown signature algorithm
is passed via the method
parameter.